Re: let's bump to 10mm from 9mm

On 18/12/2015 15:09, Richards, Jan wrote:
> I like CSS pixels as a Sufficient technique, but if that's the SC wording then:
> (1) it rules out other approaches (e.g. just using <button> and letting the UA do the sizing) and

Well yes...as the default size that a UA decides to give to a <button> 
or similar may not be sufficient. So adding CSS to explicitly say

button { width: 50px; height: 50px; }

doesn't seem unreasonable to me.

> (2) it can cause problems with text resizing that wouldn't happen if a relative unit (e.g. em) was used.

If authors are using measures other than CSS pixels, then they'd have to 
check the actual rendered size in pixels using devtools, or some 
calculation. This would be no different from things like "large text" in 
WCAG being oddly defined in points, requiring authors to work out what 
point size their text is (as they're either using px or em, for the most 
part).

If the user has changed the default text size of their UA, would it not 
conceptually fall under the same as "except when the user has reduced 
the default scale of content" (the second part of the SC wording, as per 
http://kwahlbin.github.io/Mobile-A11y-Extension/#touch-navigation)?

P
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Patrick H. Lauke

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Received on Friday, 18 December 2015 15:18:57 UTC