Reduced motion
A user preference to minimize animation, which sites should respect via the prefers-reduced-motion media query.
Animations and parallax can cause nausea or distraction for users with vestibular disorders. The prefers-reduced-motion CSS media query lets you honor a user’s system setting and tone motion down.
Auto-moving content also needs a pause control under WCAG 2.2.2.
Example
@media (prefers-reduced-motion: reduce) { * { animation: none; } }