This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The composite
property of a KeyframeEffect
resolves how an element's animation impacts its underlying property values.
Syntax
// getting var compositeEnumeration = keyframeEffect.composite; // setting keyframeEffect.composite = 'accumulate';
Value
To understand these values, take the example of a keyframeEffect
value of blur(2)
working on an underlying property value of blur(3)
.
- replace
- The
keyframeEffect
overrides the underlying value it is combined with:blur(2)
replacesblur(3)
. - add
- The
keyframeEffect
is added to the underlying value with which it is combined (aka additive):blur(2) blur(3)
. - accumulate
- The keyframeEffect is accumulated on to the underlying value:
blur(5)
.
Specifications
Specification | Status | Comment |
---|---|---|
Web Animations The definition of 'KeyframeEffect.composite' in that specification. |
Working Draft | Editor's draft. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
composite | Chrome ? | Edge ? | Firefox
Full support
63
| IE No support No | Opera No support No | Safari No support No | WebView Android ? | Chrome Android ? | Firefox Android
Full support
63
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- User must explicitly enable this feature.
- User must explicitly enable this feature.
See also
- Web Animations API
- Property of
KeyframeEffect
objects.