Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ::cue-region CSS pseudo-element matches WebVTT cues within a selected element. This can be used to style captions and other cues in media with VTT tracks.
css
::cue-region {
color: yellow;
font-weight: bold;
}
The properties are applied to the entire set of cues as if they were a single unit. The only exception is that background and its longhand properties apply to each cue individually, to avoid creating boxes and obscuring unexpectedly large areas of the media.