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Motion per WCAG 2.2.2 / 2.3.3

Auto-starting motion (carousels, video autoplay, marquee) must be pausable if it lasts longer than 5 seconds. Large motion on interaction must be reducible.

Common mistakes

Image carousels that run endlessly without a pause button, autoplayed videos with sound, aggressive parallax and scroll effects without regard for prefers-reduced-motion.

How to do it right

Offer a pause/stop control. Respect @media (prefers-reduced-motion: reduce) and switch off non-essential animations there. Nothing flashes more than 3 times per second (2.3.1).

How a11yglass helps

The free scan checks the delivered HTML and CSS for automatically recognisable WCAG breaches, and names per finding the success criterion and a concrete step. It finds roughly 20–35% of issues and does not replace a full assessment.

Read on

• Keyboard operation per WCAG 2.1.1
• Zoom & reflow per WCAG

General information to the best of our knowledge, not legal advice. For an individual case, contact a law firm specialising in IT law.