coderef

animation-compositionBaseline · Widely available

The animation-composition CSS property chooses how to combine animations that affect the same property.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 4, 2023. Widely available since Jan 4, 2026.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–111Not supported
112+Supportedsince Apr 4, 2023
Current: 155
Edge
12–111Not supported
112+Supportedsince Apr 6, 2023
Current: 154
Firefox
1–114Not supported
115+Supportedsince Jul 4, 2023
Current: 157
Safari
1–15.6Not supported
16+Supportedsince Sep 12, 2022
Current: 27
MobileChrome Android
18–111Not supported
112+Supportedsince Apr 4, 2023
Current: 155
Firefox Android
4–114Not supported
115+Supportedsince Jul 4, 2023
Current: 157
Safari iOS
1–15.6Not supported
16+Supportedsince Sep 12, 2022
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: animation-composition.

Feature detection

CSS · check before using
@supports (animation-composition: initial) {
  /* styles that rely on animation-composition */
}

/* or in JavaScript */
if (CSS.supports("animation-composition", "initial")) {
  // use it
}

Documentation (MDN)

Specification