2.4.13 Focus Not Obscured – Enhanced (Level AAA)

When a user interface component receives keyboard focus, the focus indicator may not be hidden by author-created content. This is the AAA level of SC 2.4.12 (AA). This success criterion requires that none of the focus indicator is hidden.

What you need to know

  • Among other users, people with ADHD or cognitive disabilities can benefit from always having the entire focus indicator visible to them.
  • In the case of movable content such as toolbars or non-modals, if the user can move the position of the elements, only the initial position is considered for testing and conformance to this success criterion.

What you need to do

  • Examples of content that may overlap focused items include sticky footers–those that are attached to the bottom of the viewing area. Make sure that when a user is tabbing through a webpage a focused item isn’t hidden because the header or footer overlaps it. There should be no overlap at all.


Read the full explanation of success criterion 2.4.13 on

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