On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 131 on 2024-11-12
In Chrome Android version 131 on 2024-11-12
In Edge version 131 on 2024-11-14
In Firefox version 143 on 2025-09-16
In Firefox for Android version 143 on 2025-09-16
Not in Internet Explorer
Not in Quest Browser
In Opera version 116 on 2025-01-08
In Opera Android version 87 on 2025-01-22
In Safari version 18.4 on 2025-03-31 Note: Does not support chaining pseudo-elements after ::details-content. See bug 283446.
In Safari on iOS version 18.4 on 2025-03-31 Note: Does not support chaining pseudo-elements after ::details-content. See bug 283446.
In Samsung Internet version 29.0 on undefined
In WebView Android version 131 on 2024-11-12
In WebView on iOS version 18.4 on 2025-03-31 Note: Does not support chaining pseudo-elements after ::details-content. See bug 283446.