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Pause, Stop, Hide
Guideline
For moving, blinking, scrolling, or auto-updating information, all of the following are true:
- Moving, blinking, scrolling: For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it unless the movement, blinking, or scrolling is part of an activity where it is essential; and
- Auto-updating: For any auto-updating information that (1) starts automatically and (2) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it or to control the frequency of the update unless the auto-updating is part of an activity where it is essential.
Intent
The intent of this regulation is to avoid distracting users during their interaction with a Web page.
"Moving, blinking and scrolling" refers to content in which the visible content conveys a sense of motion. Common examples include motion pictures, synchronized media presentations, animations, real-time games, and scrolling stock tickers. "Auto-updating" refers to content that updates or disappears based on a preset time interval. Common time-based content includes audio, automatically updated weather information, news, stock price updates, and auto-advancing presentations and messages. The requirements for moving, blinking and scrolling content and for auto-updating content are the same except that:
- authors have the option of providing the user with a means to control the frequency of updates when content is auto-updating and,
- there is no five second exception for auto-updating since it makes little sense to auto-update for just three seconds and then stop.
Content that moves or auto-updates can be a barrier to anyone who has trouble reading stationary text quickly as well as anyone who has trouble tracking moving objects. It can also cause problems for screen readers.
Moving content can also be a severe distraction for some people. Certain groups, particularly those with attention deficit disorders, find blinking content distracting, making it difficult for them to concentrate on other parts of the Web page. Five seconds was chosen because it is long enough to get a user's attention, but not so long that a user cannot wait out the distraction if necessary to use the page.
Content that is paused can either resume in real-time or continue playing from the point in the presentation where the user left off.
Finding Applicable Components
Identify each component that has moving or scrolling content.
Inspecting and Using Components
- Use the mechanism provided in the Web page or by the user agent to pause the moving or scrolling content.
- Check that the moving or scrolling has stopped and does not restart by itself.
- Use the mechanism provided to restart the moving content.
- Check that the movement or scrolling has resumed from the point where it was stopped.
Section 508/WCAG 2.0 Failure Conditions
- Moving or scrolling content does not have a mechanism allowing it to stop or pause.
- Fails 2.2.2 Pause, Stop, Hide.
- Resuming stopped or paused, moving or scrolling content does not resume from the point where it was stopped.
- Fails 2.2.2 Pause, Stop, Hide.
Reporting Test Results
There are no applicable baseline test results for this requirement.
See Also |