Videos or animations on a page risk causing seizures in people with Photosensitive Epilepsy.
Seizure disorders are complex. Read the following resources:
- Understanding Success Criterion 2.3.1: Three Flashes or Below Threshold by the WCAG
- MDN’s page Web accessibility for seizures and physical reactions
<div> rapidly or through certain color ranges (especially if it’s a large
<div>) can cause issues.
If you have access to a Windows computer, check the video or animated assets using the Trace Research & Development Center’s free Photosensitive Epilepsy Analysis Tool (PEAT) to identify risky material.