Schema Documentation: attribute information

The `abbr` attribute

The abbr attribute specifies an abbreviated header value.

Usage Example

<table>
	<tr>
		<th abbr="length">Length (as far as complete)</th>
		<th abbr="depth">Depth of each ramus</th>
	</tr>
	…
</table>

Attribute content model

one of the following values

true

false

The `actiontype` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the m:maction element

Attribute content model

text

The `alias` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies the string to be spoken instead of the string in the sub element.

Refer to SSML 1.1 for further information.

Usage Example

        
<p>The great toe, as <ssml:sub alias="professor">Prof.</ssml:sub> Owen remarks, which forms 
    the fulcrum when standing or walking, is perhaps the most characteristic …</p>

Parent elements

the data must be compliant with the pattern \s*(top|bottom|center|baseline|axis)\s*[0-9]*

The `align` attribute

This attribute is contributed by the MathML Feature.

Note: There are 6 different attributes with the name align. You will find information about the other align attribute(s) immediately before the presentation of this align attribute.

Parent elements

This attribute occurs on the m:mstack element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*(top|bottom|center|baseline|axis)\s*[0-9]*

The `alignmentscope` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name alignmentscope. You will find information about the other alignmentscope attribute(s) immediately after the presentation of this alignmentscope attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

a white space separated list of

one or more of

one of the following values

true

false

The `alignmentscope` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name alignmentscope. You will find information about the other alignmentscope attribute(s) immediately before the presentation of this alignmentscope attribute.

Parent elements

This attribute occurs on the m:mtable element

Attribute content model

a white space separated list of

one or more of

one of the following values

true

false

The `alphabet` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies which phonemic/phonetic pronunciation alphabet is used in the ph attribute.

If omitted, the implicit value x-SAMPA is assumed.

Refer to SSML 1.1 for further information.

Usage Example

<p>The <name><ssml:phoneme ph="g@l&quot;Qp@g@Uz" alphabet="x-SAMPA">Galapagos</ssml:phoneme></name> marine iguana.</p>

Parent elements

This attribute occurs on the following elements: ssml:phoneme (phrase variant) and ssml:phoneme (text variant)

Attribute content model

one of the following

the value ipa

The pronunciation alphabet is IPA.

This attribute occurs on the m:math element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `altimg-valign` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the m:math element

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value top

the value middle

the value bottom

The `altimg-width` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the m:math element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `alttext` attribute

The `bevelled` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name bevelled. You will find information about the other bevelled attribute(s) immediately after the presentation of this bevelled attribute.

Parent elements

This attribute occurs on the m:mfrac element

Attribute content model

one of the following values

true

false

The `bevelled` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name bevelled. You will find information about the other bevelled attribute(s) immediately before the presentation of this bevelled attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

true

false

The `brlFormat` attribute

This attribute is contributed by the DIAGRAM Description Feature.

The brlFormat attribute expresses processing information for a d:braille element.

The attribute takes as its value one or more tokens.

Parent elements

This attribute occurs on the d:braille element

Attribute content model

some data of type NMTOKENS compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The NMTOKENS datatype: A space-separated list of NMTOKEN TokenizedTypes.

The `by` attribute

The by attribute expresses the contributor of an element to the document source, such as the author, editor, a republisher, etc.

The by attribute allows a single CURIE as its value, which must be bound to an RDF property using the mechanism defined in CURIE.

All descendants of an element that declares a by attribute value implicitly inherit that value. In the absence of an expressed relationship, the implicit value author is assumed.

Usage Example

<annotation by="editor" role="correction">
	<p>...</p>
</annotation>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value author

An author of a work.

the value general-editor

The general editor of a work.

the value translator

A translator of a work.

the value commentator

A commentator on a work.

the value editor

An editor of a work.

the value republisher

A republisher of a work.

The `cd` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:annotation, m:annotation-xml, m:csymbol, m:semantics (UNDEFINED variant), m:semantics (UNDEFINED variant) and m:semantics (UNDEFINED variant)

Attribute content model

some data of type NCName compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The `cdgroup` attribute

This attribute is contributed by the MathML Feature.

Parent elements

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value loose

the value medium

the value tight

The `charspacing` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name charspacing. You will find information about the other charspacing attribute(s) immediately before the presentation of this charspacing attribute.

Parent elements

This attribute occurs on the m:mstack element

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value loose

the value medium

the value tight

The `class` attribute

The class attribute provides the ability to express general classifying or commonality between elements.

This attribute inherits all the fundamental properties of the (X)HTML class attribute and is usable in the context of CSS styling.

The class attribute is not used to inflect semantics or structure on elements or their contents. Refer to the role attribute for more information on how to layer semantic meaning on elements.

Usage Example

<p>… under the complex and sometimes varying conditions of life, will have a better chance of surviving, 
	and thus be <emph class="italic">naturally selected</emph>.</p>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), col, colgroup, d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, ssml:phoneme (phrase variant), ssml:phoneme (text variant), ssml:prosody (phrase variant), ssml:prosody (text variant), quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

some data of type NMTOKENS compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The NMTOKENS datatype: A space-separated list of NMTOKEN TokenizedTypes.

The `close` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name close. You will find information about the other close attribute(s) immediately after the presentation of this close attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

text

The `close` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name close. You will find information about the other close attribute(s) immediately before the presentation of this close attribute.

Parent elements

This attribute occurs on the m:mfenced element

Attribute content model

text

The `closure` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the m:interval element

Attribute content model

text

The `colspan` attribute

The colspan attribute specifies the number of columns spanned by the current cell.

The implicit value of this attribute is 1. The value 0 indicates that the cell spans all columns from the current column to the last column of the colgroup in which the cell is defined.

Usage Example

<table>
	<tr>
		<th colspan="2">Length (as far as complete)</th>
		<td datatype="xs:integer">17</td>
		<td datatype="xs:integer">6</td>
	</tr>
	<tr>
		<th colspan="2" rowspan="2">Depth of each ramus</th>
		<td datatype="xs:integer">4</td>
		<td datatype="xs:integer">9</td>
	</tr>
	<tr>
		<th colspan="2" />
		<td datatype="xs:integer">3</td>
		<td datatype="xs:integer">18</td>
	</tr>
</table>

Parent elements

left

center

right

The `columnlines` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name columnlines. You will find information about the other columnlines attribute(s) immediately after the presentation of this columnlines attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

a white space separated list of

one or more of

one of the following values

none

solid

dashed

The `columnlines` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name columnlines. You will find information about the other columnlines attribute(s) immediately before the presentation of this columnlines attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

a white space separated list of

one or more of

one of the following

the value auto

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value fit

The `columnwidth` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name columnwidth. You will find information about the other columnwidth attribute(s) immediately before the presentation of this columnwidth attribute.

Parent elements

This attribute occurs on the m:mtable element

Attribute content model

a white space separated list of

one or more of

one of the following

the value auto

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value fit

The `continuation` attribute

The continuation attribute provides a generic mechanism to establish a logical continuation of the current element cross one or more other elements in the document scope.

The continuation attribute must contain one or more space separated references to the IDs of the associated elements. Note that the element that carries the continuation attribute must not be referenced in this list.

The order in which the references appear in the attribute value is not significant (i.e., the reference order need not match the document order of the referenced elements). Only elements with the same QName as the parent element of the attribute can be referenced (e.g., a paragraph cannot list a table as a continuation). Additionally, only elements following the current element in the document order may be referenced as continuations. Elements that are referenced as continuations must not have continuation attributes themselves.

Logical connections allow for special formatting of elements when generating outputs (to establish the connection between emphasis that continues across multiple paragraphs for braille formatting, for example). When the continuation attribute has been attached to an element, all formatting instructions that apply to that element also apply to all the elements referenced in the attribute. Formatting instructions on the logical siblings, however, do not cascade.

A processing agent that does not recognize logical connections must be able to process each individual element in the continuation without requiring special knowledge of the elements that came before (i.e., inheritance of formatting cannot be assumed).

Usage Example

<p><emph xml:id="em1" class="italic" continuation="em2">
	"Et in Spiritum Sanctum, Dominum et vivificantem, qui ex Patre Filioque procedit. 
	Qui cum Patre et Filio simul adoratur et conglorificatur. Qui locutus est per prophetas.</emph></p>
<p><emph xml:id="em2" class="italic">
	"Et unam Catholicam et Apostolicam Ecclesiam. Confiteor unum Baptisma in remissionem peccatorum. 
	Et exspecto Resurrectionem mortuorum. Et vitam venturi saeculi. Amen."</emph></p>

Parent elements

This attribute occurs on the following elements: d:about, annoref, block, d:braille, caption, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, emph, expansion, h, hd, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), d:longdesc, note (block variant), note (phrase variant), noteref, object (block variant), object (phrase variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, d:simplifiedImage, d:simplifiedLanguageDescription, d:summary, table, d:tactile, tbody, td, term, tfoot, th, thead, time, d:tour, tr and wpart

Attribute content model

a white space separated list of

one or more of

some data of type NCName compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The IDREF datatype: An IDREF TokenizedType, as defined in section 3.3.1 of XML.

The `contour` attribute

This attribute is contributed by the SSML Integration Feature.

Sets the pitch contour for the contained text.

Refer to SSML 1.1 for further information.

Parent elements

This attribute occurs on the following elements: ssml:prosody (phrase variant) and ssml:prosody (text variant)

Attribute content model

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\(([\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)%), ?([\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)Hz)\)(,\s*\(([\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)%),
                           ?([\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)Hz)\))*

horizontalstrike

The `decimalpoint` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

Attribute content model

one of the following values

left

center

right

The `denomalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name denomalign. You will find information about the other denomalign attribute(s) immediately before the presentation of this denomalign attribute.

Parent elements

Note: There are 3 different attributes with the name depth. You will find information about the other depth attribute(s) immediately before the presentation of this depth attribute.

Parent elements

This attribute occurs on the m:mpadded element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*([\+\-]?[0-9]*(\.[0-9]*)?\s*((%?\s*(height|depth|width)?)|e[mx]|in|cm|mm|p[xtc]|((negative)?((very){0,2}thi(n|ck)|medium)mathspace)))\s*

The `desc` attribute

The desc attribute establishes the connection between the current element and its associated accessible description(s).

The desc attribute must contain one or more space separated references to the IDs of the associated descriptions.

Features may extend the use of this attribute, but not override the requirement that it resolve to a description. The Z39.98-2012 Content Selection feature, for example, provides a mechanism for pointing to a description based on the format being rendered.

Usage Example

<object src="mouse.png" desc="mouse-desc" />
<description xml:id="mouse-desc" by="republisher" role="content">
    <p>...</p>
</description>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

some data of type NCName compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The NCName datatype: An XML non-colonized Name, as defined in section 3.3.7 of XML.

The `detail` attribute

This attribute is contributed by the SSML Integration Feature.

Indicates the level of detail to be read aloud or rendered.

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

ltr

rtl

The `encoding` attribute

This attribute is contributed by the MathML Feature.

This attribute occurs on the m:mo element

Attribute content model

one of the following values

prefix

infix

postfix

The `form` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name form. You will find information about the other form attribute(s) immediately before the presentation of this form attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

prefix

infix

postfix

The `format` attribute

This attribute is contributed by the SSML Integration Feature.

In addition to interpret-as, provides further hints on the precise formatting of the contained text for content types that may have ambiguous formats.

Refer to SSML 1.1 for further information.

Parent elements

<table>
	<tr>
		<th colspan="2" xml:id="inches">Inches</th>
		<th xml:id="lines">Lines</th>
	</tr>
	<tr>
		<th xml:id="length">Length (as far as complete)</th>
		<td headers="length inches">17</td>
		<td headers="length lines">6</td>
	</tr>
	<tr>
		<th xml:id="depth">Depth of each ramus</th>
		<td headers="depth inches">4</td>
		<td headers="depth lines">9</td>
	</tr>
</table>

Parent elements

Note: There are 4 different attributes with the name height. You will find information about the other height attribute(s) immediately before the presentation of this height attribute.

Parent elements

This attribute occurs on the m:mpadded element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*([\+\-]?[0-9]*(\.[0-9]*)?\s*((%?\s*(height|depth|width)?)|e[mx]|in|cm|mm|p[xtc]|((negative)?((very){0,2}thi(n|ck)|medium)mathspace)))\s*

The `indentalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name indentalign. You will find information about the other indentalign attribute(s) immediately after the presentation of this indentalign attribute.

Parent elements

This attribute occurs on the m:mo element

Attribute content model

one of the following values

left

center

right

auto

id

The `indentalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name indentalign. You will find information about the other indentalign attribute(s) immediately before the presentation of this indentalign attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `indentshift` attribute

This attribute is contributed by the MathML Feature.

This attribute occurs on the m:mo element

Attribute content model

text

The `indenttarget` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name indenttarget. You will find information about the other indenttarget attribute(s) immediately before the presentation of this indenttarget attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

text

The `infixlinebreakstyle` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

before

after

duplicate

The `interpret-as` attribute

This attribute is contributed by the SSML Integration Feature.

Indicates the content type of the contained text construct.

Refer to SSML 1.1 for further information.

Usage Example

<h>CHAPTER <ssml:say-as interpret-as="ordinal">V</ssml:say-as>. LAWS OF VARIATION.</h>

Parent elements

This attribute occurs on the following elements: ssml:say-as (phrase variant) and ssml:say-as (text variant)

Attribute content model

one of the following values

date

Indicates that the contained text is a Gregorian calendar date.

time

Indicates that the contained text is a time.

telephone

Indicates that the contained text is a telephone number.

characters

Indicates that the enclosed text should be spoken as a series of alpha-numeric characters.

cardinal

Indicates that the enclosed text is an integral or decimal number and should be spoken as a cardinal number (as opposed to an ordinal number or digit string).

ordinal

Indicates that the enclosed text is an integral number and should be spoken as an ordinal number (as opposed to a cardinal number or digit string).

The `its:dir` attribute

The its:dir attribute specifies the base writing direction of the content.

If omitted, the implicit value ltr (left-to-right) is assumed.

The semantics of this attribute are defined by ITS. Refer to Directionality for more information.

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), col, colgroup, d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, ssml:phoneme (phrase variant), ssml:phoneme (text variant), ssml:prosody (phrase variant), ssml:prosody (text variant), quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

one of the following values

ltr

The writing direction is left-to-right. This is the implicit value of this attribute.

rtl

The writing direction is right-to-left.

lro

The writing direction is left-to-right override.

rlo

The writing direction is right-to-left override.

The `its:translate` attribute

The its:translate attribute indicates whether the content of an element is translatable or not.

If omitted, the implicit value yes is assumed.

The semantics of this attribute are defined by ITS. Refer to Translate for more information.

Parent elements

Attribute content model

one of the following values

auto

newline

nobreak

goodbreak

badbreak

The `linebreak` attribute

This attribute is contributed by the MathML Feature.

Note: There are 3 different attributes with the name linebreak. You will find information about the other linebreak attribute(s) immediately before and after the presentation of this linebreak attribute.

Parent elements

This attribute occurs on the m:mspace element

Attribute content model

one of the following values

auto

newline

nobreak

goodbreak

badbreak

indentingnewline

The `linebreak` attribute

This attribute is contributed by the MathML Feature.

Note: There are 3 different attributes with the name linebreak. You will find information about the other linebreak attribute(s) immediately before the presentation of this linebreak attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

auto

newline

nobreak

goodbreak

badbreak

The `linebreakmultchar` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name linebreakmultchar. You will find information about the other linebreakmultchar attribute(s) immediately after the presentation of this linebreakmultchar attribute.

Parent elements

This attribute occurs on the m:mo element

Attribute content model

text

The `linebreakmultchar` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name linebreakmultchar. You will find information about the other linebreakmultchar attribute(s) immediately before the presentation of this linebreakmultchar attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

text

The `linebreakstyle` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name linebreakstyle. You will find information about the other linebreakstyle attribute(s) immediately after the presentation of this linebreakstyle attribute.

Parent elements

This attribute occurs on the m:mo element

Attribute content model

one of the following values

before

after

duplicate

infixlinebreakstyle

The `linebreakstyle` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name linebreakstyle. You will find information about the other linebreakstyle attribute(s) immediately before the presentation of this linebreakstyle attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

This attribute is contributed by the MathML Feature.

Note: There are 3 different attributes with the name location. You will find information about the other location attribute(s) immediately before and after the presentation of this location attribute.

Parent elements

This attribute occurs on the m:mscarries element

Attribute content model

one of the following values

w

nw

n

ne

e

se

s

sw

The `location` attribute

This attribute is contributed by the MathML Feature.

Note: There are 3 different attributes with the name location. You will find information about the other location attribute(s) immediately before the presentation of this location attribute.

Parent elements

This attribute occurs on the m:mscarry element

Attribute content model

one of the following values

w

nw

n

ne

e

se

s

sw

The `longdivstyle` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name longdivstyle. You will find information about the other longdivstyle attribute(s) immediately after the presentation of this longdivstyle attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

lefttop

stackedrightright

mediumstackedrightright

shortstackedrightright

righttop

left/\right

left)(right

:right=right

stackedleftleft

stackedleftlinetop

The `longdivstyle` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name longdivstyle. You will find information about the other longdivstyle attribute(s) immediately before the presentation of this longdivstyle attribute.

Parent elements

This attribute occurs on the m:mlongdiv element

Attribute content model

one of the following values

lefttop

stackedrightright

mediumstackedrightright

shortstackedrightright

righttop

left/\right

left)(right

This attribute occurs on the m:mo element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `lspace` attribute

This attribute is contributed by the MathML Feature.

Note: There are 3 different attributes with the name lspace. You will find information about the other lspace attribute(s) immediately before and after the presentation of this lspace attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `lspace` attribute

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*((#[0-9a-fA-F]{3}([0-9a-fA-F]{3})?)|[aA][qQ][uU][aA]|[bB][lL][aA][cC][kK]|[bB][lL][uU][eE]|[fF][uU][cC][hH][sS][iI][aA]|[gG][rR][aA][yY]|[gG][rR][eE][eE][nN]|[lL][iI][mM][eE]|[mM][aA][rR][oO][oO][nN]|[nN][aA][vV][yY]|[oO][lL][iI][vV][eE]|[pP][uU][rR][pP][lL][eE]|[rR][eE][dD]|[sS][iI][lL][vV][eE][rR]|[tT][eE][aA][lL]|[wW][hH][iI][tT][eE]|[yY][eE][lL][lL][oO][wW])\s*

the value transparent

The `mathcolor` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:maction, m:maligngroup, m:malignmark, m:math, m:menclose, m:merror, m:mfenced, m:mfrac, m:mglyph, m:mi, m:mlabeledtr, m:mlongdiv, m:mmultiscripts, m:mn, m:mo, m:mover, m:mpadded, m:mphantom, m:mprescripts, m:mroot, m:mrow, m:ms, m:mscarries, m:mscarry, m:msgroup, m:msline, m:mspace, m:msqrt, m:msrow, m:mstack, m:mstyle, m:msub, m:msubsup, m:msup, m:mtable, m:mtd, m:mtext, m:mtr, m:munder, m:munderover and m:none

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*((#[0-9a-fA-F]{3}([0-9a-fA-F]{3})?)|[aA][qQ][uU][aA]|[bB][lL][aA][cC][kK]|[bB][lL][uU][eE]|[fF][uU][cC][hH][sS][iI][aA]|[gG][rR][aA][yY]|[gG][rR][eE][eE][nN]|[lL][iI][mM][eE]|[mM][aA][rR][oO][oO][nN]|[nN][aA][vV][yY]|[oO][lL][iI][vV][eE]|[pP][uU][rR][pP][lL][eE]|[rR][eE][dD]|[sS][iI][lL][vV][eE][rR]|[tT][eE][aA][lL]|[wW][hH][iI][tT][eE]|[yY][eE][lL][lL][oO][wW])\s*

bold-fraktur

script

bold-script

fraktur

sans-serif

bold-sans-serif

sans-serif-italic

sans-serif-bold-italic

monospace

initial

tailed

looped

stretched

The `mathvariant` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name mathvariant. You will find information about the other mathvariant attribute(s) immediately before the presentation of this mathvariant attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

normal

bold

italic

bold-italic

double-struck

bold-fraktur

script

bold-script

fraktur

sans-serif

bold-sans-serif

sans-serif-italic

sans-serif-bold-italic

monospace

initial

tailed

looped

stretched

The `maxsize` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name maxsize. You will find information about the other maxsize attribute(s) immediately after the presentation of this maxsize attribute.

Parent elements

This attribute occurs on the m:mo element

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value infinity

The `maxsize` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name maxsize. You will find information about the other maxsize attribute(s) immediately before the presentation of this maxsize attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value infinity

This attribute occurs on the m:msline element

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value thin

the value medium

the value thick

The `mslinethickness` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name mslinethickness. You will find information about the other mslinethickness attribute(s) immediately before the presentation of this mslinethickness attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value thin

the value medium

the value thick

Attribute content model

one of the following values

linebreak

scroll

elide

truncate

scale

The `ph` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies a phonemic/phonetic pronunciation for the text contained in the current element.

Refer to SSML 1.1 for further information.

Usage Example

<p>The <name><ssml:phoneme ph="g@l&quot;Qp@g@Uz" alphabet="x-SAMPA">Galapagos</ssml:phoneme></name> marine iguana.</p>

Parent elements

This attribute occurs on the following elements: ssml:phoneme (phrase variant) and ssml:phoneme (text variant)

Attribute content model

text

The `pitch` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies the baseline pitch for the contained text.

The labels x-low through x-high represent a sequence of monotonically non-decreasing pitch levels.

Refer to SSML 1.1 for further information.

Parent elements

This attribute occurs on the following elements: ssml:prosody (phrase variant) and ssml:prosody (text variant)

Attribute content model

one of the following

the value x-low

the value low

the value medium

the value high

the value x-high

the value default

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern [\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)(%|st|Hz)

The SSML RelativeChange datatype : A relative change expression, as defined in relative change.

This attribute occurs on the m:mscarries element

Attribute content model

some data of type integer compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The `range` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies the pitch range (variability) for the contained text.

Refer to SSML 1.1 for further information.

Parent elements

This attribute occurs on the following elements: ssml:prosody (phrase variant) and ssml:prosody (text variant)

Attribute content model

one of the following

the value x-low

the value low

the value medium

the value high

the value x-high

the value default

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern [\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)(%|st|Hz)

The SSML RelativeChange datatype : A relative change expression, as defined in relative change.

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern [\-+]?([0-9]+(\.[0-9]*)?|\.[0-9]+)Hz

The SSML PitchExpression datatype : A number followed by the string 'Hz'.

The `rate` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies a change in the speaking rate for the contained text.

The values x-slow through x-fast represent a sequence of monotonically non-decreasing speaking rates.

Refer to SSML 1.1 for further information.

Usage Example

<p>The <ssml:prosody rate="slow"><name xml:lang="la">platysma myoides</name></ssml:prosody>, which is well 
    developed on the neck, belongs to this system, but cannot be voluntarily brought into action.</p>

Parent elements

This attribute occurs on the following elements: ssml:prosody (phrase variant) and ssml:prosody (text variant)

Attribute content model

one of the following

the value x-slow

the value slow

the value medium

the value fast

the value x-fast

the value default

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern ([0-9]+(\.[0-9]*)?|\.[0-9]+)%

The SSML NonNegativePercentage datatype : An unsigned number immediately followed by "%", as defined in Non-negative percentage.

The `rbspan` attribute

This attribute is contributed by the ITS Ruby Feature.

Allows an its:rt element to span multiple its:rb elements in complex ruby markup.

If omitted, the implicit value 1 is assumed..

Refer to ITS Ruby for further information.

Parent elements

This attribute occurs on the its:rt element

Attribute content model

some data of type nonNegativeInteger compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern [0-9]+

The NonNegativeInteger datatype : A non-negative integer.

The `ref` attribute

The ref attribute provides a generic mechanism to establish an association between the current element and one or more other elements in the document scope.

The ref attribute must contain one or more space separated references to the IDs of the associated elements.

Usage Example

<verse>
    <ln xml:id="bw_1">Famed was this Beowulf:
        <annotation ref="bw_1">Not, of course, Beowulf the Great, hero of the epic.</annotation>
    </ln>            
    <ln>far flew the boast of him,</ln>
</verse>

Parent elements

This attribute occurs on the following elements: abbr, annoref, annotation (block variant), annotation (phrase variant), caption, citation (block variant), citation (phrase variant), d, description (block variant), description (phrase variant), description (text variant), hd, note (block variant), note (phrase variant), noteref, quote (block variant), quote (phrase variant), ref and term

Attribute content model

a white space separated list of

one or more of

some data of type NCName compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The IDREF datatype: An IDREF TokenizedType, as defined in section 3.3.1 of XML.

The `rend:prefix` attribute

This attribute is contributed by the Source Rendition Feature.

The rend:prefix attribute specifies the symbol used as prefixes to the item children of an ordered list in the source document.

The semantics of the allowed values of this attribute are defined by the CSS list-style-type property.

The value specified in rend:prefix is inherited by any descendant lists, unless such descendant lists specify a rend:prefix attribute themselves. In terms of the CSS cascade, values provided here must be considered as of author origin.

For more specialized symbols than the ones supported by the rend:prefix attribute on list, the rend:prefix attribute on item can be used.

Note: There are 4 different attributes with the name rend:prefix. You will find information about the other rend:prefix attribute(s) immediately after the presentation of this rend:prefix attribute.

Usage Example

<list type="ordered" rend:prefix="upper-roman">
    <item>…</item>
</list>

Parent elements

This attribute occurs on the list element

Attribute content model

one of the following values

none

decimal

decimal-leading-zero

lower-alpha

lower-greek

lower-latin

lower-roman

upper-alpha

upper-greek

upper-latin

upper-roman

The `rend:prefix` attribute

This attribute is contributed by the Source Rendition Feature.

The rend:prefix attribute specifies the symbol used as prefixes to the item children of an unordered list in the source document.

The semantics of the allowed values of this attribute are defined by the CSS list-style-type property.

The value specified in rend:prefix is inherited by any descendant lists, unless such descendant lists specify a rend:prefix attribute themselves. In terms of the CSS cascade, values provided here must be considered as of author origin.

For more specialized symbols than the ones supported by the rend:prefix attribute on list, the rend:prefix attribute on item can be used.

Note: There are 4 different attributes with the name rend:prefix. You will find information about the other rend:prefix attribute(s) immediately before and after the presentation of this rend:prefix attribute.

Usage Example

<list type="unordered" rend:prefix="diamond">
    <item>…</item>
</list>

Parent elements

This attribute occurs on the list element

Attribute content model

one of the following values

none

box

check

circle

diamond

disc

hyphen

square

The `rend:prefix` attribute

This attribute is contributed by the Source Rendition Feature.

The rend:prefix attribute specifies the symbol used as a prefix to the content of the list item element.

The occurrence of this attribute results in the prefix inheritance, as set by the prefix attribute on a list ancestor, ceases to be active, for this item, any following item siblings, and any child lists.

To specify prefix symbols common to multiple list items, see rend:prefix (unordered) and rend:prefix (ordered).

Note: There are 4 different attributes with the name rend:prefix. You will find information about the other rend:prefix attribute(s) immediately before and after the presentation of this rend:prefix attribute.

Usage Example

<list>
    <item rend:prefix="→">…</item>
</list>

Parent elements

This attribute occurs on the item element

Attribute content model

some data of type token compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

minimum length must be 1

The NonEmptyString datatype : Specifies a value that must contain at least one non-whitespace character after whitespace normalization rules have been applied to the attribute value, as expressed through the XSD normalizedString datatype.

The `rend:prefix` attribute

This attribute is contributed by the Source Rendition Feature.

The rend:prefix attribute specifies the characters or symbols that prefix an element.

This variant is intended for use where the attribute and its value carry no special semantics or processing requirements, such as for values that prefix notes and annotations.

Note: There are 4 different attributes with the name rend:prefix. You will find information about the other rend:prefix attribute(s) immediately before the presentation of this rend:prefix attribute.

Parent elements

This attribute occurs on the following elements: annotation and note

Attribute content model

some data of type token compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

minimum length must be 1

The NonEmptyString datatype : Specifies a value that must contain at least one non-whitespace character after whitespace normalization rules have been applied to the attribute value, as expressed through the XSD normalizedString datatype.

The `rightoverhang` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name rightoverhang. You will find information about the other rightoverhang attribute(s) immediately after the presentation of this rightoverhang attribute.

Parent elements

This attribute occurs on the m:msline element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `rightoverhang` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name rightoverhang. You will find information about the other rightoverhang attribute(s) immediately before the presentation of this rightoverhang attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately after the presentation of this role attribute.

Parent elements

This attribute occurs on the following elements: annotation (block variant) and annotation (phrase variant)

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value clarification

An annotation whose purpose is to provide a clarification.

the value correction

An annotation whose purpose is to provide a correction.

the value alteration

An annotation whose purpose is to indicate an alteration made to the source document, such as the re-arrangement or removal of content.

the value production

A temporary annotation not intended as part of the finished document, such as a production note

the value presentation

An annotation whose purpose is to describe some aspect of the document layout, such as the formatting of a page or conventions used in rendering the content.

the value commentary

An annotation whose purpose is to provide commentary.

the value attribution

An annotation whose purpose is to provide a source or attribution.

the value introductory-note

An annotation whose purpose is to provide an introductory note.

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the following elements: aside (section variant) and aside (block variant)

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the section element

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value poem

A poem.

the value lyrics

The text of a song.

the value hymn

A hymn.

the value song

A song.

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the following elements: description (block variant), description (phrase variant) and description (text variant)

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value structure

A structural description for a piece of content (e.g., a table structure summary).

the value content

A content description for a piece of content (e.g., an image description).

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the following elements: span (phrase variant) and span (text variant)

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value v-form

A formal second-person pronoun.

the value t-form

An informal second-person pronoun.

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the w element

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value v-form

A formal second-person pronoun.

the value compound

A word created by the combination of two or more stems.

the value t-form

An informal second-person pronoun.

the value homograph

An instance of a set of words with the same spelling but different etymologies and often pronunciations (e.g. bass the instrument and bass the fish).

the value portmanteau

A word created from the merging of two other words (e.g. brunch from breakfast and lunch).

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the abbr element

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value truncation

An abbreviation formed from the first part of a word.

the value initialism

An abbreviation formed from initial letters of a name or expression, with each letter pronunced separately.

the value acronym

An abbreviation formed from initial letters of a name or expression, pronounced as a word.

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the name element

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value signature

The handwritten, digital or stamped representation of a person's name.

the value place

The name of a city, state, province, country or other geographic or political entity. .

the value taxonomy

The name of a species, genus or other taxonomic classification. .

the value given-name

The part of a personal name that distinguishes the person from a group of persons sharing the same surname. Also known as 'forename' or 'first name'. .

the value personal-name

A proper name identifying a person, often composed of a given name and a family name.

the value surname

The part of a personal name that associates the person with a group of persons sharing the same surname. Also known as 'last name'.

the value name-title

The part of a personal name that signifies veneration, an official position or a professional or academic qualification. .

the value family-name

The part of a personal name that indicates the family to which the person belongs. Often used in conjunction with a honorific.

the value nationality

The name of a nationality, national group, or other designator of association. .

the value event

The name of a religious, sporting, or other event, holiday or festival. .

the value award

The name of an award or prize. .

the value product

The brand name of a product, medication, etc. .

the value organization

The name of an organization, corporation, or other business entity. .

The `role` attribute

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before and after the presentation of this role attribute.

Parent elements

This attribute occurs on the num element

Attribute content model

a white space separated list of

one or more of

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

the value mixed

A whole number followed by a fraction with a numerator and denominator.

the value decimal

A single value where the integral number is separated from the fractional value by a decimal point or comma.

the value currency

A currency value, including the denomination indicator.

the value measure

A single value of measure, including units.

the value fraction

A single fraction with a numerator and denominator, and without a preceding whole number.

the value ratio

An expression of the magnitude of two quantities relative to each other.

the value roman

A single value expressed using roman numerals.

the value ordinal

A value indicating rank or position.

the value phone

A phone number, including area code and international dialing code.

the value isbn

An International Standard Book Number.

the value coordinate

A value expressing the location of a point in n-dimensional space, including degree, minute and other indicators if specified.

the value postal-code

A postal or zip code.

the value result

A single value that includes two or more sets of numbers separated by spaces.

the value percentage

A value that defines proportionality to a whole, including percent sign if present.

the value cardinal

A value indicating quantity.

the value weight

A single weight value, including units.

The `role` attribute

The role attribute expresses a semantic inflection on the nature or purpose of its parent element.

The attribute takes as its value one or more whitespace separated CURIEs RDFa, that must be bound to one or more RDF vocabularies either defined in the RDFa initial context document or by the prefix attribute.

The role attribute is intended to be functionally compatible with the WAI-PF role attribute ( ROLE) in its expression of document metadata to improve the accessibility of documents marked up to Z39.98-AI profiles.

Note: There are 10 different attributes with the name role. You will find information about the other role attribute(s) immediately before the presentation of this role attribute.

Parent elements

This attribute occurs on the following elements: d:about, annoref, block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, note (block variant), note (phrase variant), noteref, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section, d:simplifiedImage, d:simplifiedLanguageDescription, sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse and wpart

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The `rowalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 4 different attributes with the name rowalign. You will find information about the other rowalign attribute(s) immediately after the presentation of this rowalign attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

a white space separated list of

one or more of

one of the following values

top

bottom

center

baseline

axis

The `rowalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 4 different attributes with the name rowalign. You will find information about the other rowalign attribute(s) immediately before and after the presentation of this rowalign attribute.

Parent elements

Note: There are 2 different attributes with the name rowspacing. You will find information about the other rowspacing attribute(s) immediately after the presentation of this rowspacing attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `rowspacing` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name rowspacing. You will find information about the other rowspacing attribute(s) immediately before the presentation of this rowspacing attribute.

Parent elements

This attribute occurs on the m:mtable element

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `rowspan` attribute

The rowspan attribute specifies the number of rows spanned by the current cell.

The implicit value of this attribute is 1. The value 0 indicates that the cell spans all rows from the current row to the last row of the current table section (rowgroup) in which the cell is defined (where the thead, tbody, and tfoot elements are considered rowgroups).

Note: There are 3 different attributes with the name rowspan. You will find information about the other rowspan attribute(s) immediately after the presentation of this rowspan attribute.

Parent elements

The current cell provides header information for the rest of the column that contains it.

rowgroup

The header cell provides header information for the rest of the row group that contains it.

colgroup

The header cell provides header information for the rest of the column group that contains it.

The `scriptlevel` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

some data of type integer compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The `scriptminsize` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

Attribute content model

one of the following values

true

false

The `separator` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name separator. You will find information about the other separator attribute(s) immediately before the presentation of this separator attribute.

Parent elements

Note: There are 2 different attributes with the name side. You will find information about the other side attribute(s) immediately after the presentation of this side attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

left

right

leftoverlap

rightoverlap

The `side` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name side. You will find information about the other side attribute(s) immediately before the presentation of this side attribute.

Parent elements

This attribute occurs on the m:mtable element

Attribute content model

one of the following values

left

right

leftoverlap

rightoverlap

The `span` attribute

The span attribute specifies the number of columns the properties defined in a colgroup or col apply to.

If a colgroup element contains child col elements, the span is determined automatically from the number of child col elements and any respective span values they define.

If omitted, the implicit value 1 is assumed.

Parent elements

This attribute occurs on the following elements: col and colgroup

Attribute content model

some data of type positiveInteger compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern [0-9]+

The PositiveInteger datatype : A positive integer.

The `src` attribute

The src attribute contains a URI reference to an external resource to embed in the document, in place of the current element.

Only references to resources that conform to one of the types in the srctype attribute enumeration are allowed.

Note: There are 2 different attributes with the name src. You will find information about the other src attribute(s) immediately after the presentation of this src attribute.

Usage Example

<object xml:id="mnt" src="mouse.png" srctype="image/png">
    <p>Drawing of a mouse very common on Quail Island.</p>
</object>

Parent elements

This attribute occurs on the following elements: object (block variant), object (phrase variant) and object (text variant)

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The `src` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name src. You will find information about the other src attribute(s) immediately before the presentation of this src attribute.

Parent elements

This attribute occurs on the m:mglyph element

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The `srctype` attribute

The srctype attribute contains a MediaType expression that identifies the type of resource referenced from the src attribute.

Usage Example

<object xml:id="mnt" src="mouse.png" srctype="image/png">
    <p>Drawing of a mouse very common on Quail Island.</p>
</object>

Parent elements

This attribute occurs on the following elements: object (block variant), object (phrase variant) and object (text variant)

Attribute content model

one of the following values

image/png

The referenced resource is a PNG image.

image/jpeg

The referenced resource is a JPEG image.

image/bmp

The referenced resource is a BMP image.

image/svg+xml

Contributed by the SVG CDR Feature

The `ssml:alphabet` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies which phonemic/phonetic pronunciation alphabet is used in the value of the ssml:ph attribute.

Note that this attribute is namespace qualified and intended for use on non-SSML namespace elements in conjunction with the ssml:ph attribute.

If omitted, the implicit value x-SAMPA is assumed.

Consult Speech Synthesis Markup Language (SSML) Version 1.1 for further information.

Usage Example

<p>The <name ssml:ph="g@l&quot;Qp@g@Uz" ssml:alphabet="x-SAMPA">Galapagos</name> marine iguana.</p>

Parent elements

This attribute occurs on the following elements: abbr, annoref, annotation, char, citation, code, d, definition, emph (phrase variant), emph (text variant), expansion, hpart, rend:linebreak, ln (code variant), ln (ln variant), lnum, name, note, noteref, num, pagebreak, quote, its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, span (phrase variant), span (text variant), sub, sup, term, time, ssml:token (phrase variant), ssml:token (text variant), w and wpart

Attribute content model

one of the following

the value ipa

The pronunciation alphabet is IPA.

the value x-SAMPA

The pronunciation alphabet is X-SAMPA.

text

The `ssml:onlangfailure` attribute

This attribute is contributed by the SSML Integration Feature.

Describes the desired behavior of a synthesis processor upon language speaking failure. The value of this attribute is inherited by descendants.

Refer to SSML 1.1 for further information.

Usage Example

<document xmlns="http://www.daisy.org/ns/z3998/authoring/"
          xmlns:ssml="http://www.w3.org/2001/10/synthesis" ssml:onlangfailure="changevoice" xml:lang="en">
    …
</document>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside, block, body, d:body, d:braille, caption, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, document, emph, expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), d:longdesc, name, note (block variant), note (phrase variant), noteref, num, p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section, d:simplifiedImage, d:simplifiedLanguageDescription, span, d:summary, table, d:tactile, tbody, td, term, tfoot, th, thead, time, d:tour, tr, w and wpart

Attribute content model

one of the following values

changevoice

if a voice exists that can speak the language, the synthesis processor will switch to that voice and speak the content. Otherwise, the processor chooses another behavior (either ignoretext or ignorelang)

ignoretext

the synthesis processor will not attempt to render the text that is in the failed language.

ignorelang

the synthesis processor will ignore the change in language and speak as if the content were in the previous language.

processorchoice

processorchoice - the synthesis processor chooses the behavior (either changevoice, ignoretext, or ignorelang).

The `ssml:ph` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies a phonemic/phonetic pronunciation for the text contained in the current element.

This attribute inherits the semantics of the ph attribute on the SSML ssml:phoneme (phrase) element.

Note that this attribute is namespace qualified and intended for use on non-SSML namespace elements, as opposed to the default (non-qualified) ph attribute, which is only allowed on the ssml:phoneme (phrase) element.

Consult Speech Synthesis Markup Language (SSML) Version 1.1 for further information.

Usage Example

<p>The <name ssml:ph="g@l&quot;Qp@g@Uz" ssml:alphabet="x-SAMPA">Galapagos</name> marine iguana.</p>

Parent elements

This attribute occurs on the following elements: abbr, annoref, annotation, char, citation, code, d, definition, emph (phrase variant), emph (text variant), expansion, hpart, rend:linebreak, ln (code variant), ln (ln variant), lnum, name, note, noteref, num, pagebreak, quote, its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, span (phrase variant), span (text variant), sub, sup, term, time, ssml:token (phrase variant), ssml:token (text variant), w and wpart

Attribute content model

text

The `stackalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name stackalign. You will find information about the other stackalign attribute(s) immediately after the presentation of this stackalign attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

left

center

right

decimalpoint

The `stackalign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name stackalign. You will find information about the other stackalign attribute(s) immediately before the presentation of this stackalign attribute.

Parent elements

This attribute occurs on the m:mstack element

Attribute content model

one of the following values

left

center

right

decimalpoint

The `start` attribute

The start attribute specifies the ordinal value for the first list item's prefix.

If omitted, the implicit value 1 is assumed.

This attribute is only valid when used with ordered lists (as defined by the presence and value of the type attribute).

Usage Example

                
<list type="ordered" start="17">
    <item><p>Cytheræa — Closely related to, or identical with C. purpurascens.</p></item>
    <item><p>Modiola — Same as recent kind (nov. spec.) living in the bay.</p></item>
    <item><p>Nucula — Near to N. margaritacea.</p></item>
</list>

Parent elements

This attribute occurs on the list element

Attribute content model

some data of type integer compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The Integer datatype : An integer.

The `strength` attribute

This attribute is contributed by the SSML Integration Feature.

Indicates the prosodic strength of the break in the speech output.

Refer to SSML 1.1 for further information.

Usage Example

<p>… </p>
<transition />
<ssml:break strength="strong" />        
<p>…</p>

Parent elements

This attribute occurs on the ssml:break element

Attribute content model

one of the following values

none

Indicates that no prosodic break boundary should be output.

Attribute content model

one of the following values

true

false

The `symmetric` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name symmetric. You will find information about the other symmetric attribute(s) immediately before the presentation of this symmetric attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following values

true

false

The `time` attribute

The time attribute contains a calendar or clock-based statement of time expressed in machine-readable form.

When this attribute appears on the time element, it contains an alternate rendition of the element's content.

The time attribute value must be valid to the Time datatype.

Note: There are 2 different attributes with the name time. You will find information about the other time attribute(s) immediately after the presentation of this time attribute.

Parent elements

This attribute occurs on the time element

Attribute content model

one of the following

some data of type gYear compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type gYearMonth compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type gMonthDay compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type gDay compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type gMonth compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type date compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type time compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type dateTime compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \d\d:\d\d

The TimeNoSeconds datatype: A derivation of the XSD time datatype that only includes hour and minute specifications. The lexical expression is hh:mm.

The `time` attribute

This attribute is contributed by the SSML Integration Feature.

Indicates the duration of a pause to be inserted in the output in seconds or milliseconds.

Refer to SSML 1.1 for further information.

Note: There are 2 different attributes with the name time. You will find information about the other time attribute(s) immediately before the presentation of this time attribute.

Usage Example

<p>…</p>
<transition />
<ssml:break time="2s" />
<p>…</p>

Parent elements

This attribute occurs on the ssml:break element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

This attribute occurs on the ssml:lexicon element

Attribute content model

one of the following

the value application/pls+xml

This attribute occurs on the following elements: m:set and m:tendsto

Attribute content model

text

The `uri` attribute

This attribute is contributed by the SSML Integration Feature.

Identifies the location of the lexicon document.

Refer to SSML 1.1 for further information.

Parent elements

This attribute occurs on the ssml:lexicon element

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The `valign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name valign. You will find information about the other valign attribute(s) immediately after the presentation of this valign attribute.

Parent elements

This attribute occurs on the m:mglyph element

Attribute content model

one of the following

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

the value top

the value middle

the value bottom

The `valign` attribute

This attribute is contributed by the MathML Feature.

Note: There are 2 different attributes with the name valign. You will find information about the other valign attribute(s) immediately before the presentation of this valign attribute.

Parent elements

This attribute occurs on the following elements: m:math and m:mstyle

Attribute content model

one of the following

<pagebreak xml:id="pix" value="ix" />
…
<pagebreak xml:id="p23" value="23" />

Parent elements

This attribute occurs on the pagebreak element

Attribute content model

some data of type token compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

minimum length must be 1

The NonEmptyString datatype : Specifies a value that must contain at least one non-whitespace character after whitespace normalization rules have been applied to the attribute value, as expressed through the XSD normalizedString datatype.

The `value` attribute

The value attribute provides the value of the num element in a machine-readable form.

Note: There are 4 different attributes with the name value. You will find information about the other value attribute(s) immediately before the presentation of this value attribute.

Usage Example

<p>The Origin of Species publication year is listed as <num role="roman" value="1859">mdccclix</num>.</p>

Parent elements

This attribute occurs on the num element

Attribute content model

some data of type token compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

minimum length must be 1

The NonEmptyString datatype : Specifies a value that must contain at least one non-whitespace character after whitespace normalization rules have been applied to the attribute value, as expressed through the XSD normalizedString datatype.

The `voffset` attribute

This attribute is contributed by the MathML Feature.

Parent elements

This attribute occurs on the m:mpadded element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*([\+\-]?[0-9]*(\.[0-9]*)?\s*((%?\s*(height|depth|width)?)|e[mx]|in|cm|mm|p[xtc]|((negative)?((very){0,2}thi(n|ck)|medium)mathspace)))\s*

The `volume` attribute

This attribute is contributed by the SSML Integration Feature.

Specifies the volume for the contained text.

If omitted, the implicit value +0.0dB is assumed.

Refer to SSML 1.1 for further information.

Parent elements

This attribute occurs on the following elements: ssml:prosody (phrase variant) and ssml:prosody (text variant)

Attribute content model

one of the following

the value silent

the value x-soft

the value soft

the value medium

the value loud

This attribute occurs on the m:mpadded element

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern

\s*([\+\-]?[0-9]*(\.[0-9]*)?\s*((%?\s*(height|depth|width)?)|e[mx]|in|cm|mm|p[xtc]|((negative)?((very){0,2}thi(n|ck)|medium)mathspace)))\s*

The `width` attribute

This attribute is contributed by the MathML Feature.

Note: There are 5 different attributes with the name width. You will find information about the other width attribute(s) immediately before the presentation of this width attribute.

Parent elements

This attribute occurs on the m:mtable element

Attribute content model

one of the following

the value auto

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*

The `xlink:actuate` attribute

Identifies the XLink actuate behavior of the link

Parent elements

This attribute occurs on the following elements: citation (block variant), citation (phrase variant), description (block variant), description (phrase variant), description (text variant), quote (block variant), quote (phrase variant) and ref

Attribute content model

one of the following values

onLoad

An application should traverse to the ending resource immediately on loading the starting resource.

onRequest

An application should traverse from the starting resource to the ending resource only on a post-loading event triggered for the purpose of traversal.

other

The behavior of an application traversing to the ending resource is unconstrained by this specification. The application should look for other markup present in the link to determine the appropriate behavior.

none

The behavior of an application traversing to the ending resource is unconstrained by this specification. No other markup is present to help the application determine the appropriate behavior.

The `xlink:href` attribute

Identifies a link target with a Legacy extended IRI ( LeIRI)

Parent elements

This attribute occurs on the following elements: citation (block variant), citation (phrase variant), description (block variant), description (phrase variant), description (text variant), quote (block variant), quote (phrase variant) and ref

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The `xlink:show` attribute

Identifies the XLink show behavior of the link

Parent elements

This attribute occurs on the following elements: citation (block variant), citation (phrase variant), description (block variant), description (phrase variant), description (text variant), quote (block variant), quote (phrase variant) and ref

Attribute content model

one of the following values

new

An application traversing to the ending resource should load it in a new window, frame, pane, or other relevant presentation context.

replace

An application traversing to the ending resource should load the resource in the same window, frame, pane, or other relevant presentation context in which the starting resource was loaded.

embed

An application traversing to the ending resource should load its presentation in place of the presentation of the starting resource.

other

The behavior of an application traversing to the ending resource is unconstrained by XLink. The application should look for other markup present in the link to determine the appropriate behavior.

none

The behavior of an application traversing to the ending resource is unconstrained by this specification. No other markup is present to help the application determine the appropriate behavior.

The `xlink:title` attribute

Identifies the XLink title of the link.

Parent elements

This attribute occurs on the following elements: citation (block variant), citation (phrase variant), description (block variant), description (phrase variant), description (text variant), quote (block variant), quote (phrase variant) and ref

Attribute content model

text

The `xlink:type` attribute

Identifies the XLink link type

In any Z39.98-AI profile and as defined by XLink Simple Conformance, the xlink type simple is the implied xlink type, and does therefore not need to be expressed literally using the xlink:type attribute.

Parent elements

This attribute occurs on the following elements: citation (block variant), citation (phrase variant), description (block variant), description (phrase variant), description (text variant), quote (block variant), quote (phrase variant) and ref

Attribute content model

the value simple

The XLink simple link type

The `xml:base` attribute

The xml:base attribute specifies a base URI to use for resolving relative URI references, for instances where the base URI of the document or external entity is not appropriate.

The semantics and behaviors of this attribute are defined by XMLBase.

Usage Example

<citation>
	<ref xlink:href="http://plato.stanford.edu/entries/darwinism/">
		Darwinism
	</ref>
</citation>

<document xmlns="http://www.daisy.org/ns/z3998/authoring/" xml:lang="en-ca" xml:base="http://www.daisy.org/examples/" xml:space="preserve">
	…
</document>

Parent elements

This attribute occurs on the following elements: abbr, d:about, m:abs, m:and, annoref, annotation (block variant), annotation (phrase variant), m:annotation, m:annotation-xml, m:apply, m:approx, m:arccos, m:arccosh, m:arccot, m:arccoth, m:arccsc, m:arccsch, m:arcsec, m:arcsech, m:arcsin, m:arcsinh, m:arctan, m:arctanh, m:arg, aside (section variant), aside (block variant), m:bind, block, body, d:body, d:braille, caption, m:card, m:cartesianproduct, m:cbytes, m:ceiling, m:cerror, char, m:ci, citation (block variant), citation (phrase variant), m:cn, code (block variant), code (phrase variant), m:codomain, col, colgroup, m:complexes, m:compose, m:conjugate, m:cos, m:cosh, m:cot, m:coth, m:cs, m:csc, m:csch, m:csymbol, m:curl, d, definition, description (block variant), description (phrase variant), description (text variant), d:description, m:determinant, m:diff, m:divergence, m:divide, document, m:domain, emph (phrase variant), emph (text variant), m:emptyset, m:eq, m:equivalent, m:eulergamma, m:exists, m:exp, expansion, m:exponentiale, m:factorial, m:factorof, m:false, m:floor, m:forall, m:gcd, m:geq, m:grad, m:gt, h, hd, head, d:head, hpart, m:ident, m:image, m:imaginary, m:imaginaryi, m:implies, m:in, m:infinity, m:int, m:integers, m:intersect, m:interval, m:inverse, item, m:lambda, m:laplacian, m:lcm, m:leq, m:limit, rend:linebreak, list, m:list, ln (code variant), ln (ln variant), m:ln, lngroup (code variant), lngroup (lngroup variant), lnum, m:log, d:longdesc, m:lt, m:maction, m:maligngroup, m:malignmark, m:math, m:matrix, m:matrixrow, m:max, m:mean, m:median, m:menclose, m:merror, meta, m:mfenced, m:mfrac, m:mglyph, m:mi, m:min, m:minus, m:mlabeledtr, m:mlongdiv, m:mmultiscripts, m:mn, m:mo, m:mode, m:moment, m:mover, m:mpadded, m:mphantom, m:mprescripts, m:mroot, m:mrow, m:ms, m:mscarries, m:mscarry, m:msgroup, m:msline, m:mspace, m:msqrt, m:msrow, m:mstack, m:mstyle, m:msub, m:msubsup, m:msup, m:mtable, m:mtd, m:mtext, m:mtr, m:munder, m:munderover, name, m:naturalnumbers, m:neq, m:none, m:not, m:notanumber, note (block variant), note (phrase variant), noteref, m:notin, m:notprsubset, m:notsubset, num, object (block variant), object (phrase variant), object (text variant), m:or, m:otherwise, m:outerproduct, p, pagebreak, m:partialdiff, ssml:phoneme (phrase variant), ssml:phoneme (text variant), m:pi, m:piece, m:piecewise, m:plus, m:power, m:primes, m:product, ssml:prosody (phrase variant), ssml:prosody (text variant), m:prsubset, quote (block variant), quote (phrase variant), m:quotient, m:rationals, its:rb, its:rbc, m:real, m:reals, ref, m:rem, m:root, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), m:scalarproduct, m:sdev, m:sec, m:sech, section (section variant), section (verse variant), m:selector, m:semantics (UNDEFINED variant), m:semantics (UNDEFINED variant), m:semantics (UNDEFINED variant), m:set, m:setdiff, m:share, d:simplifiedImage, d:simplifiedLanguageDescription, m:sin, m:sinh, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), m:subset, m:sum, d:summary, sup, table, d:tactile, m:tan, m:tanh, tbody, td, m:tendsto, term, tfoot, th, thead, time, m:times, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, m:transpose, m:true, m:union, m:variance, m:vector, m:vectorproduct, verse, w, wpart and m:xor

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The `xml:id` attribute

The xml:id attribute specifies a unique identifier for the element.

No two elements in an xml document can have the same xml:id, including inside components that are appended to the primary document by xinclude statements or other means.

The semantics of this attribute are defined by XMLID.

Usage Example

<pagebreak xml:id="p474" value="474" />

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, ssml:break, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), col, colgroup, d, definition, description (block variant), description (phrase variant), description (text variant), d:description, document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, ssml:lexicon, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, ssml:phoneme (phrase variant), ssml:phoneme (text variant), ssml:prosody (phrase variant), ssml:prosody (text variant), quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

some data of type NCName compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The ID datatype: An ID TokenizedType, as defined in section 3.3.1 of XML.

The `xml:lang` attribute

The xml:lang attribute identifies the natural or formal language in which the content is written.

The semantics of this attribute are defined by XML. Refer to Language Identification for more information.

Usage Example

In the sea around <name xml:lang="es">Tierra del Fuego</name>, and at no great distance from the land, 
I have seen narrow lines of water of a bright red colour …

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), col, colgroup, d, definition, description (block variant), description (phrase variant), description (text variant), d:description, document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, ssml:phoneme (phrase variant), ssml:phoneme (text variant), ssml:prosody (phrase variant), ssml:prosody (text variant), quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

one of the following

some data of type language compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

length must be 0

The `xml:space` attribute

The xml:space attribute indicates whether the whitespace within an element is significant.

The semantics of this attribute are defined by XML. Refer to White Space Handling for more information.

Usage Example

<block xml:space="preserve" role="letter">
    <ln>Alice's Right Foot, Esq.</ln>
    <ln>    Hearthrug,</ln>
    <ln>        Near the fender,</ln>
    <ln>            (with Alice's love).</ln>
</block>

Parent elements

This attribute occurs on the following elements: abbr, d:about, m:abs, m:and, annoref, annotation (block variant), annotation (phrase variant), m:annotation, m:annotation-xml, m:apply, m:approx, m:arccos, m:arccosh, m:arccot, m:arccoth, m:arccsc, m:arccsch, m:arcsec, m:arcsech, m:arcsin, m:arcsinh, m:arctan, m:arctanh, m:arg, aside (section variant), aside (block variant), m:bind, block, body, d:body, d:braille, caption, m:card, m:cartesianproduct, m:cbytes, m:ceiling, m:cerror, char, m:ci, citation (block variant), citation (phrase variant), m:cn, code (block variant), code (phrase variant), m:codomain, col, colgroup, m:complexes, m:compose, m:conjugate, m:cos, m:cosh, m:cot, m:coth, m:cs, m:csc, m:csch, m:csymbol, m:curl, d, definition, description (block variant), description (phrase variant), description (text variant), m:determinant, m:diff, m:divergence, m:divide, document, m:domain, emph (phrase variant), emph (text variant), m:emptyset, m:eq, m:equivalent, m:eulergamma, m:exists, m:exp, expansion, m:exponentiale, m:factorial, m:factorof, m:false, m:floor, m:forall, m:gcd, m:geq, m:grad, m:gt, h, hd, head, d:head, hpart, m:ident, m:image, m:imaginary, m:imaginaryi, m:implies, m:in, m:infinity, m:int, m:integers, m:intersect, m:interval, m:inverse, item, m:lambda, m:laplacian, m:lcm, m:leq, m:limit, rend:linebreak, list, m:list, ln (code variant), ln (ln variant), m:ln, lngroup (code variant), lngroup (lngroup variant), lnum, m:log, d:longdesc, m:lt, m:maction, m:maligngroup, m:malignmark, m:math, m:matrix, m:matrixrow, m:max, m:mean, m:median, m:menclose, m:merror, meta, m:mfenced, m:mfrac, m:mglyph, m:mi, m:min, m:minus, m:mlabeledtr, m:mlongdiv, m:mmultiscripts, m:mn, m:mo, m:mode, m:moment, m:mover, m:mpadded, m:mphantom, m:mprescripts, m:mroot, m:mrow, m:ms, m:mscarries, m:mscarry, m:msgroup, m:msline, m:mspace, m:msqrt, m:msrow, m:mstack, m:mstyle, m:msub, m:msubsup, m:msup, m:mtable, m:mtd, m:mtext, m:mtr, m:munder, m:munderover, name, m:naturalnumbers, m:neq, m:none, m:not, m:notanumber, note (block variant), note (phrase variant), noteref, m:notin, m:notprsubset, m:notsubset, num, object (block variant), object (phrase variant), object (text variant), m:or, m:otherwise, m:outerproduct, p, pagebreak, m:partialdiff, ssml:phoneme (phrase variant), ssml:phoneme (text variant), m:pi, m:piece, m:piecewise, m:plus, m:power, m:primes, m:product, ssml:prosody (phrase variant), ssml:prosody (text variant), m:prsubset, quote (block variant), quote (phrase variant), m:quotient, m:rationals, its:rb, its:rbc, m:real, m:reals, ref, m:rem, m:root, its:rp, its:rt, its:rtc, its:ruby, s, ssml:say-as (phrase variant), ssml:say-as (text variant), m:scalarproduct, m:sdev, m:sec, m:sech, section (section variant), section (verse variant), m:selector, m:semantics (UNDEFINED variant), m:semantics (UNDEFINED variant), m:semantics (UNDEFINED variant), m:set, m:setdiff, m:share, d:simplifiedImage, d:simplifiedLanguageDescription, m:sin, m:sinh, span (phrase variant), span (text variant), sub, ssml:sub (phrase variant), ssml:sub (text variant), m:subset, m:sum, d:summary, sup, table, d:tactile, m:tan, m:tanh, tbody, td, m:tendsto, term, tfoot, th, thead, time, m:times, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, m:transpose, m:true, m:union, m:variance, m:vector, m:vectorproduct, verse, w, wpart and m:xor

Attribute content model

one of the following values

default

Signals that applications' default white-space processing modes are acceptable for this element.

preserve

Signals the intent that applications preserve white space for this element.

The RDFa `about` attribute

Description

The about attribute specifies the subject of a relationship. If not given, then the subject is the current document.

Usage Example

<head>
	<meta typeof="dramatis-personae">
		<meta xml:id="alice" about="#alice" property="persona">
			<name>Alice</name>
		</meta>
	</meta>
</head>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The RDFa `content` attribute

Description

The content attribute specifies a string to use as an object for the property attribute.

Usage Example

<head>
	…
	<meta property="dc:identifier" content="daisy-z2012-exemplar-01" />
	…
</head>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

text

The RDFa `datatype` attribute

Description

The datatype attribute specifies a datatype of the object of the property attribute (either in the content attribute, or the content of the element that the datatype attribute is on.)

By default, data in the content attribute is of type string, and data in the content of an element has type xml:Literal. If datatype="" is used, then for the RDF the element content is stripped of markup, and is of type string.

Usage Example

<table>
	<tr>
		<th colspan="2">Length (as far as complete)</th>
		<td datatype="xs:integer">17</td>
		<td datatype="xs:integer">6</td>
	</tr>
	<tr>
		<th colspan="2" rowspan="2">Depth of each ramus</th>
		<td datatype="xs:integer">4</td>
		<td datatype="xs:integer">9</td>
	</tr>
	<tr>
		<th colspan="2" />
		<td datatype="xs:integer">3</td>
		<td datatype="xs:integer">18</td>
	</tr>
</table>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The RDFa `prefix` attribute

Description

The prefix attribute associates RDFa vocabulary namespace prefixes and URIs, as defined in RDFa Core 1.1.

The prefix attribute may optionally be attached to the root document element. Z39.98-AI profiles must not allow the attribute to be attached to any other element.

The prefix attribute must not be used to redefine prefixes or URIs declared in the default context document for the profile.

Usage Example

<document xmlns="http://www.daisy.org/ns/z3998/authoring/" prefix="news: http://www.daisy.org/z3998/2012/vocab/periodicals/" xml:lang="en">
	…
</document>

Parent elements

This attribute occurs on the document element

Attribute content model

some data of type normalizedString compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern \s*([\i-[:]][\c-[:]]*: +[^ ]+)(\s+[\i-[:]][\c-[:]]*: +[^ ]+)*\s*

The RDFa `property` attribute

Description

The property attribute defines a relationship between the subject and either a string (if the content attribute is present) or the content of the element that the property attribute is on.

Usage Example

<head>
	<meta typeof="dramatis-personae">
		<meta xml:id="alice" about="#alice" property="persona">
			<name>Alice</name>
		</meta>
	</meta>
</head>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The RDFa `rel` attribute

Description

The rel attribute defines a relation between the subject and a URL given by the resource attribute.

The rev attribute expresses the inverse relation.

Usage Example

<head>
	…
	<meta rel="z3998:profile" resource="http://example.org/z3998/2012/auth/profiles/sciencejournal/1.0/">
		<meta property="z3998:name" content="sciencejournal" />
		<meta property="z3998:version" content="1.0" />
	</meta>
	…
</head>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The RDFa `resource` attribute

Description

The resource attribute specifies an object URI for the rev and rel attributes, if the attribute href is not present.

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

some data of type anyURI compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

The anyURI datatype: A Uniform Resource Identifier Reference, as defined by the anyURI type in XML Schema Part2.

The RDFa `rev` attribute

Description

The rev attribute defines a relation between the subject and a URL given by the resource attribute.

The rel attribute expresses the inverse relation.

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

The RDFa `typeof` attribute

Description

The typeof attribute creates a blank node, which becomes the subject, and asserts that the current element contains relationships that match the given RDF type.

Usage Example

<head>
	<meta typeof="dramatis-personae">
		<meta xml:id="alice" about="#alice" property="persona">
			<name>Alice</name>
		</meta>
	</meta>
</head>

Parent elements

This attribute occurs on the following elements: abbr, d:about, annoref, annotation (block variant), annotation (phrase variant), aside (section variant), aside (block variant), block, body, d:body, d:braille, caption, char, citation (block variant), citation (phrase variant), code (block variant), code (phrase variant), d, definition, description (block variant), description (phrase variant), description (text variant), document, emph (phrase variant), emph (text variant), expansion, h, hd, head, d:head, hpart, item, rend:linebreak, list, ln (code variant), ln (ln variant), lngroup (code variant), lngroup (lngroup variant), lnum, d:longdesc, meta, name, note (block variant), note (phrase variant), noteref, num, object (block variant), object (phrase variant), object (text variant), p, pagebreak, quote (block variant), quote (phrase variant), its:rb, its:rbc, ref, its:rp, its:rt, its:rtc, its:ruby, s, section (section variant), section (verse variant), d:simplifiedImage, d:simplifiedLanguageDescription, span (phrase variant), span (text variant), sub, d:summary, sup, table, d:tactile, tbody, td, term, tfoot, th, thead, time, ssml:token (phrase variant), ssml:token (text variant), d:tour, tr, verse, w and wpart

Attribute content model

a white space separated list of

one or more of

some data of type string compliant with the data type library http://www.w3.org/2001/XMLSchema-datatypes

the data must be compliant with the pattern (([\i-[:]][\c-[:]]*)?:)?[\i-[:]][\c-[:]]*

The CURIE datatype : A single CURIE, as defined in RDFa.

Attributes

The abbr attribute

Usage Example

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Attribute content model

The accent attribute

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The accent attribute

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The accent attribute

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The accent attribute

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The accentunder attribute

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The accentunder attribute

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The accentunder attribute

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The actiontype attribute

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The alias attribute

Usage Example

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The align attribute

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The align attribute

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The align attribute

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The align attribute

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The align attribute

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The align attribute

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The alignmentscope attribute

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The alignmentscope attribute

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The alphabet attribute

Usage Example

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The alt attribute

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The altimg attribute

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The altimg-height attribute

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The altimg-valign attribute

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The altimg-width attribute

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The alttext attribute

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The associate attribute

The `abbr` attribute

The `accent` attribute

The `accent` attribute

The `accent` attribute

The `accent` attribute

The `accentunder` attribute

The `accentunder` attribute

The `accentunder` attribute

The `actiontype` attribute

The `alias` attribute

The `align` attribute

The `align` attribute

The `align` attribute

The `align` attribute

The `align` attribute

The `align` attribute

The `alignmentscope` attribute

The `alignmentscope` attribute

The `alphabet` attribute

The `alt` attribute

The `altimg` attribute

The `altimg-height` attribute

The `altimg-valign` attribute

The `altimg-width` attribute

The `alttext` attribute

The `associate` attribute

The `base` attribute

The `bevelled` attribute

The `bevelled` attribute

The `brlFormat` attribute

The `by` attribute

The `cd` attribute

The `cdgroup` attribute

The `charalign` attribute

The `charalign` attribute

The `charspacing` attribute

The `charspacing` attribute

The `class` attribute

The `close` attribute

The `close` attribute

The `closure` attribute

The `colspan` attribute

The `columnalign` attribute

The `columnalign` attribute

The `columnalign` attribute

The `columnalign` attribute

The `columnlines` attribute

The `columnlines` attribute