Level A
Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds.>
Explanation
A page must not contain content that flashes more than three times a second. This ensures that people with conditions like photosensitive Epilepsy are protected from harmful seizures.
Responsibilities
- Content
- Design
- QA
Requirements
- Content does not flash more than three times a second.
Common mistakes
- Content flashes at more than three times a second.
Official resources
- 2.3.1 Flashes or Below Threshold
- Understanding 2.3.1 Flashes or Below Threshold
- How to meet 2.3.1 Flashes or Below Threshold