- Success Criterion 2.2.2
- Conformance level A
- W3C reference F7
Embedded Animation That Blinks for Over 5 Seconds Nonstop
2.2.2 — Pause, Stop, Hide
Scenario
Setting
A university's online course catalog
What’s wrong
An embedded object or animation blinks for more than 5 seconds and there is no way to pause or stop it.
Example
<div class="carousel" data-autoplay="true"></div>Why it matters
People with attention disabilities, low vision, or screen-reader users who lose place when content moves.
How to test
Time any blinking object/embedded content: beyond 5 seconds with no pause mechanism, it fails.
How to fix
Stop the blinking within 5 seconds or provide a pause/stop control for the embedded content.
<div class="carousel" data-autoplay="true"></div><button aria-label="Pause carousel">⏸</button>Any auto-updating content past 5 seconds needs a visible pause/stop/hide control.
Outcome
On a university's online course catalog, this barrier is gone for people with attention disabilities — they get the same result as anyone else here.
Who is affected
People with attention disabilities, low vision, or screen-reader users who lose place when content moves.
Learn more
- Understanding Understanding document (opens in a new tab)
- Technique Related technique (opens in a new tab)
Related scenarios
- Auto-Scrolling Ticker or Slider With No Pause Button
- Script-Driven Blinking Content With No Way to Stop It
- Content That Blinks Past 5 Seconds With No Stop Control
- Auto-Rotating Carousel Running Past 5 Seconds With No Pause
- Autoplaying Background Video With No Way to Pause It
- Looping Animated GIF With No Way to Freeze It