:seeking CSS pseudo-class

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The :seeking CSS pseudo-class selector represents an element that is playable, such as <audio> or <video>, when the playable element is seeking a playback position in the media resource. A resource is considered to be seeking if the user has requested playback of a specific position in the media resource, but the media element has not yet reached that position.

Seeking is different from :buffering in that the media element is not currently loading data, but is instead skipping to a new position in the media resource. For more information, see the Media buffering, seeking, and time ranges guide.

Syntax

css
:seeking {
  /* ... */
}

Examples

CSS

css
:seeking {
  outline: 5px solid red;
}

video:seeking {
  outline: 5px solid blue;
}

Specifications

Specification
Selectors Level 4
# selectordef-seeking
HTML
# selector-seeking

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
:seeking
Chrome – No support
Chrome
footnote No support
Edge – No support
Edge
footnote No support
Firefox – Full support
Firefox 150 (Release date: 2026-04-21)
footnote Full support
Opera – No support
Opera
footnote No support
Safari – Full support
Safari 15.4 (Release date: 2022-03-14)
footnote Full support
Chrome Android – No support
Chrome Android
footnote No support
Firefox for Android – Full support
Firefox for Android 150 (Release date: 2026-04-21)
footnote Full support
Opera Android – No support
Opera Android
footnote No support
Safari on iOS – Full support
Safari on iOS 15.4 (Release date: 2022-03-14)
footnote Full support
Samsung Internet – No support
Samsung Internet
footnote No support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – Full support
WebView on iOS 15.4 (Release date: 2022-03-14)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

See also