Level ASince WCAG 2.0
2.4.3 Focus Order
Guideline 2.4: Navigable – People can find their way and always know where they are.
What does the rule require?
With the Tab key, focus moves in a sensible order – usually top to bottom and left to right.
How to get it right
Do not use positive tabindex values such as tabindex="5". Put the code in the right order instead.
Who benefits most?
- People with motor disabilities
- Blind people
Official wording
This page explains the rule in simple words. Only the original W3C text is normative.
- “Understanding Focus Order” at W3C (external site)
- Techniques in the WCAG Quick Reference (external site)