- From: Christophe Strobbe <christophe.strobbe@esat.kuleuven.be>
- Date: Thu, 19 Feb 2009 10:19:33 +0100
- To: www-international@w3.org
Hi Martin, At 02:33 18/02/2009, Martin Duerst wrote: >At 20:05 09/02/17, Christophe Strobbe wrote: > > >Is it really a good idea to generate heading numbers through CSS? > It's very convenient for authors, but heading numbers are not > really a styling aspect (as opposed to content). > >What kind of numbering you use is very much a styling aspect. *What kind* of numbering may be a styling aspect, but the presence or absence of numbering isn't. That's what I was really after. >And if you want to do the actual sequence number in content, >I don't know whether it's possible to express the number style >via CSS (that would mean that e.g. > <h1 style='number-style: upper-roman;'>3. My Title</h1> >would be rendered something like > III. My Title > > > >As far as I know, screen readers don't pick up heading numbers > generated through CSS. > >That's definitely bad, and may be a good reason to not do heading numbers >with CSS for the moment, but it shouldn't affect the long-term design of CSS. Screen readers get their data from the underlying application - in this case, the browser - and if the application doesn't have the numbers in the document tree, the screen reader isn't aware of them. Screen readers should have to re-implement all the document formats that the underlying applications claim to support. Best regards, Christophe Strobbe >Regards, Martin. > > >(This is not surprising: CSS 2.1 says: "Generated content does not > alter the document tree. In particular, it is not fed back to the > document language processor (e.g., for reparsing)." > <http://www.w3.org/TR/CSS21/generate.html#content>. The CSS 2.0 > spec said the same thing, at > <http://www.w3.org/TR/CSS2/generate.html#content>. Of course, the > fact that IE 5 through 7 didn't/don't support generated content > with counter increments > >[<http://msdn.microsoft.com/en-us/library/cc351024(VS.85).aspx#gene > rated>] didn't help either, because IE is what most screen reader users use.) > > > >#-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University >#-#-# http://www.sw.it.aoyama.ac.jp mailto:duerst@it.aoyama.ac.jp -- Christophe Strobbe K.U.Leuven - Dept. of Electrical Engineering - SCD Research Group on Document Architectures Kasteelpark Arenberg 10 bus 2442 B-3001 Leuven-Heverlee BELGIUM tel: +32 16 32 85 51 http://www.docarch.be/ --- Please don't invite me to LinkedIn, Facebook, Quechup or other "social networks". You may have agreed to their "privacy policy", but I haven't. Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
Received on Thursday, 19 February 2009 09:20:22 UTC