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Accessibility
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Statement:
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If
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you
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use
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motion
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or
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animation
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...
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using
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motion
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or
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animation
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using
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motion
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or
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animation
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- Avoid
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- blinking
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- or
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- scrolling
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- text.
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- Moving
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- text
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- and
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- animation
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- can
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- be
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- a
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- distraction
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- to
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- people
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- with
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- cognitive
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- disabilities.
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- Screen
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- readers
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- or
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- individuals
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- with
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- visual
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- or
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- cognitive
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- disabilities
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- may
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- not
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- be
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- able
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- to
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- read
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- moving
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- text.
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- 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
Return to the checklist
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Adapted with permission from web accessibility pages at Penn State