Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Flashing Content(also: Flashing, Flash)
- Visual content that alternates between contrasting states at a rate that can trigger seizures in people with photosensitive epilepsy. WCAG defines a flash as a pair of opposing luminance changes or a transition involving saturated red. Content with more than three flashes per…
- Focus Indicator(also: Focus Ring, Visible Focus, Focus Outline)
- A visual cue that shows which interactive element on a page or in an application currently has keyboard focus. Focus indicators are typically rendered as an outline, border, or highlight around the focused element. They are essential for keyboard users and screen magnification…
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