On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 89 on 2021-03-02 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Chrome Android version 89 on 2021-03-02 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Edge version 89 on 2021-03-04 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Firefox version 70 on 2019-10-22
In Firefox for Android version 79 on 2020-07-28
Not in Internet Explorer
In Quest Browser version 15.0 on 2021-03-30 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Opera version 75 on 2021-03-24 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Opera Android version 63 on 2021-04-16 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In Safari version 12.1 on 2019-03-25
In Safari on iOS version 12.2 on 2019-03-25
In Samsung Internet version 15.0 on 2021-08-13 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In WebView Android version 89 on 2021-03-02 Note: The text-decoration-thickness property has no effect unless text-underline-offset, text-decoration-color, or text-decoration-style are set to a non-initial value. See bug 40734940.
In WebView on iOS version 12.2 on 2019-03-25