:current(p, span) { background-color: yellow; } :past, :future { 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>