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Website Guidelines
Don't Use Animated Page Elements
Avoid using page elements that are animated
or that flicker.
Rationale - These elements
may cause seizures among individuals who
have photosensitive epilepsy. Additionally, many individuals
with full use of their sight and no epileptic condition claim
that animations are distracting and annoying.
Methods - the HTML
elements <blink> and <marquee> are both deprecated
and should no longer be used. Animations can have a legitimate
use, but should be avoided when their sole purpose is decoration.
If animations must be used, avoid flickering. It is also helpful
to provide a method for users to start and stop the animation.
However, it is best to limit the use of such elements altogether.
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