This feature is not Baseline because it does not work in some of the most widely-used browsers.
The :future CSS pseudo-class selector is a time-dimensional pseudo-class that will match for any element which appears entirely after an element that matches :current. For example in a video with captions which are being displayed by WebVTT.
:future(p, span) {
display: none;
}
:future {
/* ... */
}
:future(p, span) {
display: none;
}
<video controls preload="metadata">
<source src="video.mp4" type="video/mp4" />
<source src="video.webm" type="video/webm" />
<track
label="English"
kind="subtitles"
srclang="en"
src="subtitles.vtt"
default />
</video>
WEBVTT FILE 1 00:00:03.500 --> 00:00:05.000 This is the first caption 2 00:00:06.000 --> 00:00:09.000 This is the second caption 3 00:00:11.000 --> 00:00:19.000 This is the third caption
| Specification |
|---|
| Selectors Level 4> # the-future-pseudo> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
:future |
23 | 79 | No | 15 | 7 | 25 | No | 14 | 7 | 1.5 | 4.4 | 7 |
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https://developer.mozilla.org/en-US/docs/Web/CSS/:future