The
meta
element expresses metadata information about the document, a document fragment or an external resource associated with the
document.
Usage details available in the Usage Details section.
Usage Example
<head>
<meta rel="z3998:profile" resource="http://www.daisy.org/z3998/2012/auth/profiles/book/1.0">
<meta property="z3998:name" content="book" />
<meta property="z3998:version" content="1.0" />
</meta>
<meta rel="z3998:rdfa-context" resource="http://www.daisy.org/z3998/2012/vocab/context/default/" />
<meta property="dc:identifier" content="int.daisy.book.12345" />
<meta property="dc:publisher" content="DAISY Consortium" />
<meta property="dc:date" content="2012-07-27T18:50:05Z" />
</head>
Allowed parents
head,
d:head and
meta
Allowed children
This element may contain text.
This element may contain the following children: abbr,
annoref,
annotation,
ssml:break,
char,
citation,
code,
d,
definition,
emph (text variant),
emph (phrase variant),
expansion,
rend:linebreak,
ln,
m:math,
meta,
name,
note,
noteref,
num,
object (text variant),
object (phrase variant),
pagebreak,
ssml:phoneme (text variant),
ssml:phoneme (phrase variant),
ssml:prosody (text variant),
ssml:prosody (phrase variant),
quote,
ref,
its:ruby,
s,
ssml:say-as (text variant),
ssml:say-as (phrase variant),
span (text variant),
span (phrase variant),
sub,
ssml:sub (text variant),
ssml:sub (phrase variant),
sup,
term,
time,
ssml:token (text variant),
ssml:token (phrase variant) and
w
Content model and additional requirements
a choice of
or
followed by
one or more of
a choice of either one of the 45 elements:
abbr,
annoref,
annotation,
char,
citation,
code,
d,
definition,
emph,
emph,
expansion,
its:ruby,
ln,
m:math,
name,
note,
noteref,
num,
object,
object,
pagebreak,
quote,
ref,
rend:linebreak,
s,
span,
span,
ssml:break,
ssml:break,
ssml:phoneme,
ssml:phoneme,
ssml:prosody,
ssml:prosody,
ssml:say-as,
ssml:say-as,
ssml:sub,
ssml:sub,
ssml:token,
ssml:token,
sub,
sup,
term,
time,
w or
w
or text
end of choice
or
followed by
one or more of
a choice of either one of the 45 elements:
abbr,
annoref,
annotation,
char,
citation,
code,
d,
definition,
emph,
emph,
expansion,
its:ruby,
ln,
m:math,
name,
note,
noteref,
num,
object,
object,
pagebreak,
quote,
ref,
rend:linebreak,
s,
span,
span,
ssml:break,
ssml:break,
ssml:phoneme,
ssml:phoneme,
ssml:prosody,
ssml:prosody,
ssml:say-as,
ssml:say-as,
ssml:sub,
ssml:sub,
ssml:token,
ssml:token,
sub,
sup,
term,
time,
w or
w
or text
end of choice
or
followed by
one or more of
a choice of either one of the 45 elements:
abbr,
annoref,
annotation,
char,
citation,
code,
d,
definition,
emph,
emph,
expansion,
its:ruby,
ln,
m:math,
name,
note,
noteref,
num,
object,
object,
pagebreak,
quote,
ref,
rend:linebreak,
s,
span,
span,
ssml:break,
ssml:break,
ssml:phoneme,
ssml:phoneme,
ssml:prosody,
ssml:prosody,
ssml:say-as,
ssml:say-as,
ssml:sub,
ssml:sub,
ssml:token,
ssml:token,
sub,
sup,
term,
time,
w or
w
or text
end of choice
end of choice
Note that in addition to restrictions presented in the content model above,
use of this element must also respect the following requirement:
- The meta
content
attribute must neither be empty nor contain only whitespace.
Such requirements take precedence over any conflicting statements in the
content model or in the lists above of allowed children and parents.
Namespace
http://www.daisy.org/ns/z3998/authoring/
Usage Details
Acceptable methods for specifying the value of a
meta
element include:
It is not valid to employ both methods for the same element. If no value is specified, the
meta
element either expresses a specialized metadata function or is a container for one or more child
meta
elements.