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Re: Caution about Style Sheets

From: Leonard R. Kasday <kasday@acm.org>
Date: Tue, 23 Jan 2001 09:35:32 -0500
Message-Id: <4.3.2.7.2.20010123092757.02dd5270@pop3.concentric.net>
To: Charles McCathieNevile <charles@w3.org>, Bill Kules <wmk@takoma-software.com>
Cc: "W3c-Wai-Ig@W3. Org" <w3c-wai-ig@w3.org>
Actually, the question started as to why 6.1 was needed.    Someone could 
use the infamous font tag to change style or font.  The ban on the font tag 
is only priority 2.  Whereas the ban on using color alone is, 
appropriately, priority 1.  So something is needed to make the ban on using 
font or style alone a priority 1, and generalizing the color alone 
checkpoint seems like a nice place to squeeze that in.

Len


At 12:15 AM 1/23/01 -0500, Charles McCathieNevile wrote:
>You have overlooked checkpoint 6.1: Organize documents so they may be read
>without style sheets. For example, when an HTML document is rendered without
>associated style sheets, it must still be possible to read the document.
>
>Cheers
>
>Charles McCN
>
>
>On Mon, 22 Jan 2001, Bill Kules wrote:
>
>   "Leonard R. Kasday" wrote:
>
>   > Another thing that can go wrong is to use CSS classes that mean 
> something,
>   > e.g. define a class that means "out of stock" which shows up in, say,
>   > italic or a particular font.  When you turn off style sheets there's 
> no way
>   > to tell that an item is a member of that class, unless you have some
>   > redundant marking.
>
>   I agree that this would be a problem.  I'm wondering
>   whether any of the WAI Guidelines directly address it.
>   Checkpoint 2.1 prevents you from using color as the
>   only status indicator, but doesn't address italics
>   or font changes.  Certainly the implication would
>   be that you should not depend on any presentational
>   markup (alternatively, that doesn't have equivalent
>   functional text?), but I haven't seen this in the
>   checkpoints.  Have I overlooked something, or should
>   2.1 perhaps be extended beyond just color?
>
>   Bill
>
>
>--
>Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409 
>134 136
>W3C Web Accessibility Initiative     http://www.w3.org/WAI    fax: +1 617 
>258 5999
>Location: I-cubed, 110 Victoria Street, Carlton VIC 3053, Australia
>(or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, 
>France)

--
Leonard R. Kasday, Ph.D.
Institute on Disabilities/UAP and Dept. of Electrical Engineering at Temple 
University
(215) 204-2247 (voice)                 (800) 750-7428 (TTY)
http://astro.temple.edu/~kasday         mailto:kasday@acm.org

Chair, W3C Web Accessibility Initiative Evaluation and Repair Tools Group
http://www.w3.org/WAI/ER/IG/

The WAVE web page accessibility evaluation assistant: 
http://www.temple.edu/inst_disabilities/piat/wave/
Received on Tuesday, 23 January 2001 09:35:23 GMT

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