CSS selector: `:where()`
IE
- 6 - 10: Not supported
- 11: Not supported
Edge
- 12 - 87: Not supported
- 88 - 100: Supported
- 101: Supported
Firefox
- 2 - 76: Not supported
- 77: Disabled by default
- 78 - 99: Supported
- 100: Supported
- 101 - 102: Supported
Chrome
- 4 - 71: Not supported
- 72 - 87: Disabled by default
- 88 - 100: Supported
- 101: Supported
- 102 - 104: Supported
Safari
- 3.1 - 13.1: Not supported
- 14 - 15.3: Supported
- 15.4: Supported
- TP: Supported
Opera
- 10 - 73: Not supported
- 74 - 85: Supported
- 86: Supported
- 87: Supported
Safari on iOS
- 3.2 - 13.7: Not supported
- 14 - 15.3: Supported
- 15.4: Supported
Opera Mini
- all: Support unknown
Android Browser
- 2.1 - 4.4.4: Not supported
- 101: Supported
Opera Mobile
- 12 - 12.1: Not supported
- 64: Supported
Chrome for Android
- 101: Supported
Firefox for Android
- 100: Supported
UC Browser for Android
- 12.12: Support unknown
Samsung Internet
- 4 - 14.0: Not supported
- 15.0: Supported
- 16.0: Supported
QQ Browser
- 10.4: Support unknown
Baidu Browser
- 7.12: Support unknown
KaiOS Browser
- 2.5: Support unknown