Understanding Success Criterion 1.4.13: Content on Hover or Focus

Intent

Additional content that appears and disappears in coordination with keyboard focus
or pointer hover often leads to accessibility issues. Reasons for such issues include:

  • the user may not have intended to trigger the interaction
  • the user may not know new content has appeared
  • the new content may intefere with a user’s ability to do a task
  • Examples of such interactions can include custom tooltips, sub-menus and other nonmodal
    popups which display on hover and focus. The intent of this success criterion is to
    ensure that [...]

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