Where receiving and then removing pointer hover or keyboard focus triggers additional content to become visible and then hidden, the following are true:
- Dismissible: A mechanism is available to dismiss the additional content without moving pointer hover or keyboard focus, unless the additional content communicates an input error or does not obscure or replace other content;
- Hoverable: If pointer hover can trigger the additional content, then the pointer can be moved over the additional content without the additional content disappearing;
- Persistent: The additional content remains visible until the hover or focus trigger is removed, the user dismisses it, or its information is no longer valid.
Exception: The visual presentation of the additional content is controlled by the user agent and is not modified by the author.
Understanding Success Criterion 1.4.13: Content on Hover or Focus
Checklist – Special Testing Scenarios
Keyboard Navigation
| Test | Priority | Automated test? |
|---|---|---|
| Does all hidden content have keyboard interactions? (tabs, etc.) | High | None |
| Is hidden content able to be dismissed without moving the hover or keyboard focus? | High | None |
| Does hidden content stay visible until it shouldn’t be? | High | None |
Screen Reader Navigation
| Test | Priority | Automated test? |
|---|---|---|
| Did I provide hidden content for screen readers? | High | None |
| Are screen-reader-only elements read correctly? | High | None |