On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 119 on 2023-10-31
In Chrome Android version 119 on 2023-10-31
In Edge version 119 on 2023-11-02
In Firefox version 51 on 2017-01-24 Note: This value was supported before Firefox 51, but as an alias to border-box.
In Firefox for Android version 51 on 2017-01-24 Note: This value was supported before Firefox for Android 51, but as an alias to border-box.
Not in Internet Explorer
Not in Quest Browser
In Opera version 105 on 2023-11-14
In Opera Android version 79 on 2023-12-06
In Safari version 13.1 on 2020-03-24
In Safari on iOS version 13.4 on 2020-03-24
In Samsung Internet version 25.0 on 2024-04-24
In WebView Android version 119 on 2023-10-31
In WebView on iOS version 13.4 on 2020-03-24