This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2020.
The AnimationEvent.pseudoElement read-only property is a string, starting with '::', containing the name of the pseudo-element the animation runs on. If the animation doesn't run on a pseudo-element but on the element, an empty string: ''.
A string, starting with '::', containing the name of the pseudo-element the animation runs on.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
pseudoElement |
68 | 79 | 23 | 55 | 13.1 | 68 | 23 | 48 | 13.4 | 10.0 | 68 | 13.4 |
animation, animation-delay, animation-direction, animation-duration, animation-fill-mode, animation-iteration-count, animation-name, animation-play-state, animation-timing-function, @keyframes.AnimationEvent interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent/pseudoElement