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Accessibility Statement: If you use motion or animation
View an accessible page using motion or animation
View an inaccessible page using motion or animation
- Avoid blinking or scrolling text. Moving text and animation can be a distraction to people with cognitive disabilities. Screen readers or individuals with visual or cognitive disabilities may not be able to read moving text.
- Avoid causing the screen to flicker; large flickering or flashing images may cause seizures in users with photosensitive epilepsy. These seizures can be triggered by flickering or flashing in the 4 to 59 flashes per second (Hertz) range, with greatest sensitivity occurring at 20 flashes per second. Rapid tonal changes can have the same effect.
- Provide clear text alternatives for continuous animation.
- Check accessibility by viewing your page in multiple browsers and platforms, then verify it with tools like CAST's on-line BOBBY verification tool.
Read the relevant W3C guideline -- 1.1 1.3 1.4 7.1
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Adapted with permission from web accessibility pages at Penn State