[whatwg] List Headers
lachlan.hunt at lachy.id.au
Wed Feb 4 02:50:03 PST 2009
Christian Svindseth wrote:
> On Feb 4, 2009, at 11:13 AM, Robert O'Rourke wrote:
>> Are there any plans to bring list headers from HTML3 into HTML5?
>> They'd make a lot of markup patterns simpler and be very very useful
>> when it comes to styling.
> Unless I'm misreading the spec completely, HTML5 supports h1-h6, and
> even header elements inside list items.
While you can include headings within li elements, that's different from
what the lh element in HTML3, or even the label element in XHTML2, were
I believe the use case is providing a title indicating the content of
the list, but where the title itself shouldn't contribute to the
document's outline. In HTML5, the only way to do this is to precede a
list with an heading (h1-h6) element.
As an example of this, consider the element summaries in the HTML 5
Reference, the attribute list has the heading Attributes, but that
heading is not meant to affect the document's outline and doesn't appear
in the TOC. I had to use class="no-num no-toc", which is recognised by
anolis (the spec's pre-processor tool), to avoid it being included in
But note that the issue itself doesn't affect just lists. The same
issue occurs for the DOM Interfaces sections, but that content isn't
marked up as a list, and I'm also considering changing the attributes to
use a table instead of a list, providing the attributes and associated
So I do not believe introducing the LH element from HTML3 would
adequately address the use case. It's possible that what could be
needed is an element that can contain the heading and its associated
content, and behaves as a sectioning root:
"Certain elements are said to be sectioning roots, including
blockquote and td elements. These elements can have their own
outlines, but the sections and headers inside these elements do not
contribute to the outlines of their ancestors."
It's possible that the figure element could be used for this purpose, as
it is already a sectioning root, in which case we wouldn't need to add
anything new to address this use case. Though it's not entirely clear
to me whether the figure element's meaning allows for this case.
Lachlan Hunt - Opera Software
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