Failing example — 2.3.1 Three Flashes or Below Threshold

This page deliberately DEMONSTRATES a WCAG 2.3.1 failure. The flashing is not started automatically — see the warning below.

Health warning

The button below starts a rapidly flashing animation of the kind 2.3.1 prohibits. Do not use it if you have photosensitive epilepsy, or if you are unsure.

Flash sale