On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 88 on 2021-01-19 Note: Doesn't support combinators.
In Chrome Android version 88 on 2021-01-19 Note: Doesn't support combinators.
In Edge version 88 on 2021-01-21 Note: Doesn't support combinators.
In Firefox version 78 on 2020-06-30 Note: Doesn't support combinators. See bug 906353.
In Firefox for Android version 79 on 2020-07-28 Note: Doesn't support combinators. See bug 906353.
Not in Internet Explorer
In Quest Browser version 14.0 on undefined Note: Doesn't support combinators.
In Opera version 74 on 2021-02-02 Note: Doesn't support combinators.
In Opera Android version 63 on 2021-04-16 Note: Doesn't support combinators.
In Safari version 14 on 2020-09-16 Note: Doesn't support combinators.
In Safari on iOS version 14 on 2020-09-16 Note: Doesn't support combinators.
In Samsung Internet version 15.0 on 2021-08-13
In WebView Android version 88 on 2021-01-19 Note: Doesn't support combinators.
In WebView on iOS version 14 on 2020-09-16 Note: Doesn't support combinators.