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The WCAG Primer is intended for use by the UK cross government accessibility community.

2.4.3 Focus Order (A)

Understanding 2.4.3 Focus Order (A)

It must be possible to navigate through content in a way that makes sense. This ensures that content can be navigated in a logical way by screen reader users, keyboard users, and people who choose to use their own CSS style sheets.

Requirements / What to do?

  • The visible focus order matches the DOM focus order.

Common mistakes

  • The DOM order does not match the visual order because CSS properties like flexbox and grid-layout have been used to alter the visual presentation;
  • When CSS styles are disabled, the focus order is meaningless;
  • When a user interaction causes content to be displayed, it does so before the trigger control in the DOM order.

Useful resources

  • TBC