On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 57 on 2017-03-09
In Chrome Android version 57 on 2017-03-16
In Edge version 16 on 2017-10-17
In Firefox version 70 on 2019-10-22 Note: Does not accept multiple track-size values. See bug 1339672.
In Firefox for Android version 79 on 2020-07-28 Note: Does not accept multiple track-size values. See bug 1339672.
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 44 on 2017-03-21
In Opera Android version 43 on 2017-09-27
In Safari version 10.1 on 2017-03-27
In Safari on iOS version 10.3 on 2017-03-27
In Samsung Internet version 6.0 on 2017-08-23
In WebView Android version 57 on 2017-03-16
In WebView on iOS version 10.3 on 2017-03-27