Control moving, blinking or auto-updating content

Definition A page that includes moving, blinking, scrolling or auto-updating content that starts automatically and lasts more than 5 seconds must have a mechanism to pause, stop, or hide such content.
Purpose
  • People with visual impairments and visual processing learning disabilities may not be able to read or understand content that is blinking, scrolling or auto updating
Required Yes for HTML4 Legacy Techniques ruleset mapping
WCAG 2.0 Success Criteria

2.2.2 Pause, Stop, Hide (Level A, Primary Success Criterion)

Rule Category Timing
Scope Element
Target Resources Canvas, SVG and image animations; moving, blinking, scrolling or auto-updating text content; and embedded applications
  • applet
  • embed
  • img
  • object
Techniques
  • Pause/Resume: Through configuration or controls on the page, enable the user to pause and resume the moving, blinking, scrolling or auto-updating content.
  • Stop: Through configuration or controls on the page, enable the user to stop the moving, blinking, scrolling or auto-updating content and see all of the content at one time.
  • Hide: Through configuration or controls on the page, enable the user to hide the moving, blinking, scrolling or auto-updating content if it is not essential for the activity.
Informational Links