`:stalled` CSS pseudo-class

Baseline Newly available

This feature works across the latest devices and browser versions. This feature might not work in older devices or browser versions. It's been available across browsers since August 2026.

The :stalled CSS pseudo-class selector represents an element that is playable, such as <audio> or <video>, when playback is stalled. A resource is considered to be stalled if the user has requested playback of a specific position in the media resource, but it has failed to receive any data for some amount of time. This is different from :buffering in that the media element is unexpectedly not loading data when stalled (e.g., due to a network error) for around 3 seconds (the exact time is user agent dependent).

Note: Like with the :buffering pseudo-class, the element is still considered to be "playing" when it is "stalled". If :stalled matches an element, :playing will also match that element.

Syntax

:stalled {
  /* ... */
}

Examples

CSS

:stalled {
  outline: 5px solid red;
}

audio:stalled {
  background-color: red;
}

Specifications

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

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
`stalled`	152	152	150	136	15.4	152	150	No	15.4	No	152	15.4

`:stalled` CSS pseudo-class

Syntax

Examples

CSS

Specifications

Browser compatibility

See also