- From: Henri Sivonen <hsivonen@iki.fi>
- Date: Wed, 28 Nov 2007 15:02:28 +0200
- To: Dr.Olaf Hoffmann <Dr.O.Hoffmann@gmx.de>
- Cc: public-html@w3.org
On Nov 28, 2007, at 12:54, Dr. Olaf Hoffmann wrote: > But if a reader has a method to 'style' audible a difference between > h1 and h2, it should be possible to count headings outside sections > and > sections nested in each other with heading to derive the numbering > as specified in the working draft. Then it is the same problem as > to style h1 and h2 differently in an aural stylesheet. If the > document only uses section structures and no h2...h6, > I think, it is simple to create a default aural CSS stylesheet. But > if both systems are mixed, indeed, this gets more difficult, > but as far as I can see (from an author point of view) not impossible. It seems to me that the usefulness of the proposed outline depends largely on whether there will be a companion CSS selector for matching an element by its outline depth. A new selector like that should cascade reasonably with legacy styles written for h1-h6 or h1/section. I don't know if that's even possible. Moreover, it isn't clear whether it is performance-wise feasible for selectors to depend on the outline algorithm when there are dynamic DOM changes. See also http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2007-February/009553.html > From this point of view of course it would be simpler for > implementors to separate the two methods either using > section+h or using h1-h6. Separation of different functionalities > is mostly a good idea to avoid more difficulties as necessary. What should happen when the UA gets a mix anyway? -- Henri Sivonen hsivonen@iki.fi http://hsivonen.iki.fi/
Received on Wednesday, 28 November 2007 13:02:53 UTC