Limited Availability Selectors

Time-relative pseudo-selectors

The :past and :future CSS pseudo-classes match prior or upcoming text track cues during media playback.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Jan 15, 2020.

Desktop Browser Engine Support

Google Chrome

23

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

7

Supported

Microsoft Edge

79

Supported

Mobile Browser Engine Support

Chrome Android

25

Firefox Android

—

Safari iOS

7

Specifications and References

MDN Browser Compat Data Keys: