- From: Thomas Sisson <thomas.sisson.1@gmail.com>
- Date: Thu, 25 Oct 2012 22:36:39 -0400
- 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 invisible. 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 unavailable. 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