technology
prefers-reduced-motion
prefers-reduced-motion is a CSS media query that detects whether the user has signalled, via OS settings, a preference for reduced motion — used to disable or simplify animations, parallax scrolling, and large-scale movement that can trigger vestibular disorders, motion sickness, or attention issues.
About prefers-reduced-motion
Honoring this media query is required by WCAG 2.3.3 Animation from Interactions (Level AAA) and is a strong indicator of an accessibility-mature design system.
Where prefers-reduced-motion appears in a AccessivePath audit
Our AI auditors test concepts like prefers-reduced-motion as part of the WCAG 2.2 Level AA audit cycle — both via automated rule scanning and through screen-reader simulation and human pair review.
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