Photosensitive Epilepsy should be a concern to anyone creating any type of animated media. As a matter of fact, in order to pass WCAG Level A, a web page cannot “contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds”. Testing this requirement may seem a little daunting at first, but luckily there is a free tool called PEAT that web developers can use to test if their animations and videos can cause an epileptic attack. This blog post talks about how to use PEAT, what it’s limitations are, and how to work around them.
Entries Tagged as 'Color'
April 2nd, 2017 by zoltan · No Comments
August 28th, 2010 by zoltan · 16 Comments
The seemingly impossible task of coming up with color codes off the top of your head can be done easily using CSS3’s
hsl color notation. Read how you can use this “human-friendly” and how it can work in the few browsers that don’t support it natively.
May 6th, 2010 by zoltan · 1 Comment
In the first in a planned series of posts, I update cssSandpaper with new features. This week I add IE support for
translate() support to CSS transforms and alpha channel support to linear gradients.