The
h
element represents a structural heading.
The
h
element is strongly associated with the
section
element and its specializations. Each section typically allows zero or one
h
element child.
Usage Example
<h>
On the Origin of Species by Means of Natural Selection or
the Preservation of Favoured races in the struggle for life.
</h>
Allowed parents
aside,
body,
section (section variant),
section (verse variant) and
verse
Allowed children
This element may contain text.
This element may contain the following children: abbr,
annoref,
ssml:break,
char,
code,
d,
definition,
emph (text variant),
emph (phrase variant),
expansion,
hpart,
rend:linebreak,
ln,
m:math,
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),
ref,
its:ruby,
s,
ssml:say-as (text variant),
ssml:say-as (phrase variant),
span (phrase variant),
span (text 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
optional attributes:
@about,
@by,
@class,
@content,
@continuation,
@datatype,
@desc,
@its:dir,
@its:translate,
@property,
@rel,
@resource,
@rev,
@role,
@ssml:onlangfailure,
@typeof,
@xml:base,
@xml:id,
@xml:lang and
@xml:space
one or more of
a choice of
or
one or more of
a choice of either one of the 42 elements:
abbr,
annoref,
char,
code,
d,
definition,
emph,
emph,
expansion,
its:ruby,
ln,
m:math,
name,
note,
noteref,
num,
object,
object,
pagebreak,
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
h
element 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/