:future
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
CSS :future 伪类选择器是一种时间维度伪类，用于匹配那些完全出现在匹配 :current 元素之后的元素。例如，在通过 WebVTT 显示字幕的视频中。
css
:future(p, span) { display: none; } 语法
css
:future { /* ... */ } 示例
CSS
css
:future(p, span) { display: none; } HTML
html
<video controls preload="metadata"> <source src="video.mp4" type="video/mp4" /> <source src="video.webm" type="video/webm" /> <track label="Chinese" kind="subtitles" srclang="zh" src="subtitles.vtt" default /> </video> WebVTT
WEBVTT FILE 1 00:00:03.500 --> 00:00:05.000 这是第一条字幕 2 00:00:06.000 --> 00:00:09.000 这是第二条字幕 3 00:00:11.000 --> 00:00:19.000 这是第三条字幕
规范
| Specification |
|---|
| Selectors Level 4 # the-future-pseudo |