Movement
Why it Matters | How To... | Testing | GuidelinesWhy it Matters
Users can find moving content such as scrolling text and flashing banner adverts distracting. Moving content can also cause some users to have epileptic fits.
[return to top]How To...
Try to avoid all moving content - as a bare minimum, inform users in advance of any moving content. Allow users to pause or freeze content that moves. Ensure that animations do not fall within the range of 16Hz to 25Hz as this is the most common range to cause seizures.
[return to top]Testing
Test animated GIF files using a [return to top]Guidelines
Checkpoint 7.3 Until user agents allow users to freeze moving content, avoid movement in pages.
[return to top]Tenuta: Usability and Accessibility support | eTEN project nr: 517347 |
tenuta@cs.york.ac.uk
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