On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 125 on 2024-05-14 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In Chrome Android version 125 on 2024-05-14 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In Edge version 125 on 2024-05-17 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In Firefox version preview on undefined
Not in Firefox for Android
Not in Internet Explorer
Not in Quest Browser
In Opera version 111 on 2024-06-12 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In Opera Android version 83 on 2024-06-25 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In Safari version 26 on 2025-09-15
In Safari on iOS version 26 on 2025-09-15
In Samsung Internet version 27.0 on 2024-11-06 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In WebView Android version 125 on 2024-05-14 Note: The generic auto value exists, but it does not yet have the effect described in the spec.
In WebView on iOS version 26 on 2025-09-15