W3C home > Mailing lists > Public > public-uaag2-comments@w3.org > October 2012

UAAG 2.0 Working Drafts Feedback

From: Thomas Sisson <thomas.sisson.1@gmail.com>
Date: Thu, 25 Oct 2012 22:36:39 -0400
Message-ID: <5089F737.7030200@gmail.com>
To: public-uaag2-comments@w3.org
Visual adjustments made by the user to make content easier to read 
should not break the intent of the page or make the content unusable or 

For example, the current approach to make pages more visually accessible 
when content is too visually distracting or when backgrounds and content 
lack sufficient contrast is an all or nothing approach. Disabling styles 
is the common method that gives the user a choice between unreadable 
pages and black and white pages. A method should be available to permit 
visual contrast independent of disabling all styles and backgrounds. (I 
had proposed a CSS contrast user style that may help with this issue.)

Another example text resizing when scrolling is disabled or content is 
clipped. When content is clipped to a specific width or height, the 
designer bases that on assumed text size. (This is apparent to some 
users because Microsoft and non-Microsoft environments have a different 
base font size.) When resizing text, the authors intent is broken, 
causing text to run off the expected background which may make it partly 
unreadable. Resizing content breaks the authors expectations and causes 
content to disappear. When scrollbars are also disabled, content is no 
longer available.

A specific example is the "HTML5" canvas overlay. Web authors often 
create these substitutions for pop-up windows that require input. When 
text is resized, the overlay becomes larger than the window. If that 
overlay is not permitted to scroll, the user cannot perform the action 
required. Worst yet, the mechanism for canceling the overlay may also be 

I hope this is the type of input that is requested, and that the 
committee finds it useful.

Thomas Sisson
Received on Saturday, 27 October 2012 15:49:03 UTC

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