Why it matters
Keyboard users depend on predictable focus order to understand page structure.
Common violations
- Focusable elements hidden off-screen
- Modals that do not trap focus
- Tab order that skips key content
Code examples
Bad
<button tabindex="3">Save</button>Good
<button>Save</button>How to fix
Follow DOM order for focus, manage focus in modals, and avoid positive tabindex values.
Related criteria
Related resources
Test & fix this criterion
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