Schema Documentation - Book Profile
version 1.0

The h element

On this page:

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, bibliography, glossary, index, section (section variant), section (verse variant), section (toc variant), section (index variant), section (bibliography variant), section (glossary variant), toc and verse

Allowed children

This element may contain text.

This element may contain the following children: abbr, address, annoref, ssml:break, char, code, d, definition, emph (text variant), emph (phrase variant), expansion, hpart, xforms:input, 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), xforms:range, ref, its:ruby, s, ssml:say-as (text variant), ssml:say-as (phrase variant), xforms:secret, sel:select, xforms:select, xforms:select1, span (phrase variant), span (text variant), sub, ssml:sub (text variant), ssml:sub (phrase variant), sup, term, xforms:textarea, 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, @sel:selid, @ssml:onlangfailure, @typeof, @xml:base, @xml:id, @xml:lang and @xml:space
one or more of
a choice of
either hpart
or one or more of
a choice of
either one of the 50 elements: abbr, address, annoref, char, code, d, definition, emph, emph, expansion, its:ruby, ln, m:math, name, note, noteref, num, object, object, pagebreak, ref, rend:linebreak, s, sel:select, 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, w, xforms:input, xforms:range, xforms:secret, xforms:select, xforms:select1 or xforms:textarea
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/