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Re: 4.2 WCAG 1.0 Checkpoint

From: Jon Hanna <jon@hackcraft.net>
Date: Tue, 22 Nov 2005 17:49:54 +0000
Message-ID: <43835A42.20305@hackcraft.net>
To: w3c-wai-ig@w3.org

Christophe Strobbe wrote:
> At 17:40 22/11/2005, Patrick Lauke wrote:
> <blockquote>
> Keep in mind that Internet Explorer does not support ABBR...
> </blockquote>
> What exactly is the evidence for this statement?
> In the HTML 4 specification I can find no requirement that abbr should 
> be underlined and/or that the title should be visible on hover. This 
> behaviour is merely inconsistent with Internet Explorer's support for 
> acronym, but is not in conflict with the specification. So what is the 
> real evidence for saying that IE6 does not support abbr, if such 
> evidence does indeed exist?
> Does it mean that certain information is not in the DOM? That screen 
> readers can't access the title attribute of abbr because of lacking 
> support in IE (not the screen reader!)?
> (When Microsoft says that they are going to add support for abbr to IE7, 
> does that mean anything else than making it consistent with support for 
> acronym?)

IE treats <abbr> as it does <somethingIjustMadeUp>. This does include a 
lack of support in the DOM, and also it does not respond to CSS 
statements for the abbr element, unlike acronym which is better supported.

While you are write that HTML 4 does not require that abbr should be 
underlined, CSS 1 does require that when the stylesheet includes 
abbr{text-decoration: underline} (although the default style used in 
Mozilla is a bottom-border rather than an underline, so that it can be 
distinct when on an anchor, which is underlined in the default style).
Received on Tuesday, 22 November 2005 17:44:13 UTC

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