- From: Charles McCathieNevile <charles@w3.org>
- Date: Fri, 12 Mar 1999 19:17:19 -0500 (EST)
- To: Masayasu Ishikawa <mimasa@w3.org>
- cc: tenkate@natlab.research.philips.com, WAI GL <w3c-wai-gl@w3.org>
Masayasu's ISO-HTML excerpt looks like a good way of explaining the idea. I wonder if it is available freely. Warner ten Kate wrote: > I was confused by the wording "nest". I understood that as, eg, > > <h1> > heading 1 text > <h2>nested header</h2> > remainder heading 1 > </h1> > > which isn't valid HTML. > I think the intended meaning is, eg, > > <h1>heading 1 text</h1> > ... > <h2>nested header</h2> > .... > <h1>other heading 1</h1> > > the "nesting" concerns the alignment with the > contextual organisation. > > I find this is an interesting observation: > The content model of the heading elements doesn't reflect > this guideline. In fact, two informations are needed: > - structure of headings (ie. nesting as reffered in this guideline) > - the (text) data being in those headings (what h1-6 model) > A combined model could go in the direction of: > > <section> > <h>heading 1 text</h> > <!-- heading 1 because of child of first section --> > ... > <section> > <h>nested header</h> > <!-- heading 2 because of child of second level section --> > .... > </section> > .... > <h>other heading 1</h> > </section> > > where levels can be set (like numbers on a <li>) then On Fri, 12 Mar 1999, Masayasu Ishikawa wrote: Just FYI, ISO-HTML [1] takes a very strict attitude towards this issue, and actually it *requires* to "nest" sections, by introducing pseudo elements <div1> through <div6>, though, these elements shall not appear in valid ISO-HTML documents. An example: <h1>heading 1 text</h1> <div1> ... <h2>heading 2 text</h2> <div2> .... </div2> </div1> <h1>other heading 1</h1> If you are interested in it, take a look at relevant section of User's Guide to ISO-HTML [2]. [1] http://purl.org/NET/ISO+IEC.15445/15445.html [2] http://purl.org/NET/ISO+IEC.15445/Users-Guide.html#h1 Regards, -- Masayasu Ishikawa / mimasa@w3.org W3C - World Wide Web Consortium --Charles McCathieNevile mailto:charles@w3.org phone: +1 617 258 0992 http://www.w3.org/People/Charles W3C Web Accessibility Initiative http://www.w3.org/WAI MIT/LCS - 545 Technology sq., Cambridge MA, 02139, USA
Received on Friday, 12 March 1999 19:17:28 UTC