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[Back to 2 Operable index](index.md)
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# 2.3.2 Three Flashes
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- Level: AAA
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- Guideline: 2.3 Seizures and Physical Reactions
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- Principle: 2 Operable
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## What it is
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Web pages do not contain anything that flashes more than three times in any one second period.
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## How to test
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- Check: Web pages do not contain anything that flashes more than three times in any one second period.
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- Use the sufficient techniques below as acceptable methods when applicable.
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## Sufficient techniques (W3C)
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- G19: Ensuring that no component of the content flashes more than three times in any 1-second period
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## Resources
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- WCAG 2.2 SC: https://www.w3.org/TR/WCAG22/#three-flashes
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- Understanding: https://www.w3.org/WAI/WCAG22/Understanding/three-flashes.html
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- Quick reference: https://www.w3.org/WAI/WCAG22/quickref/?versions=2.2#three-flashes
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[Back to 2 Operable index](index.md)
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