Success criterion 2.3.1 · Level A
Three Flashes or Below Threshold
“Wow, that flashing ad is like a rave party for my eyes. Can we not?”
Success criterion 2.3.1 · Level A
Three Flashes or Below Threshold
Web pages do not contain anything that flashes more than three times in any one-second period.
Principle 2: Operable · Guideline 2.3: Seizures and Physical Reactions
What each role can do
- Product manager
- Avoid incorporating flashing elements into the product's design.
- Designer
- Design static, non-flashing user interface elements for a more inclusive experience.
- Developer
- Ensure that no elements on the page flash more than three times in a one-second period.
- Tester
- Conduct tests to identify and eliminate any flashing elements that exceed the threshold.
Once it is fixed
“Thanks for cutting the disco lights. My eyes and my brain appreciate it!”
Next criterion: 2.3.2 Three Flashes