CSS selector: `:where()`

IE

  1. 6 - 10: Not supported
  2. 11: Not supported

Edge

  1. 12 - 87: Not supported
  2. 88: Supported
  3. 89: Supported

Firefox

  1. 2 - 76: Not supported
  2. 77: Disabled by default
  3. 78 - 86: Supported
  4. 87: Supported
  5. 88 - 89: Supported

Chrome

  1. 4 - 71: Not supported
  2. 72 - 87: Disabled by default
  3. 88: Supported
  4. 89: Supported
  5. 90 - 92: Supported

Safari

  1. 3.1 - 13.1: Not supported
  2. 14: Supported
  3. TP: Supported

Opera

  1. 10 - 72: Not supported
  2. 73: Not supported

Safari on iOS

  1. 3.2 - 13.7: Not supported
  2. 14: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 89: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 62: Not supported

Chrome for Android

  1. 89: Supported

Firefox for Android

  1. 86: Supported

UC Browser for Android

  1. 12.12: Support unknown

Samsung Internet

  1. 4 - 12.0: Not supported
  2. 13.0: Not supported

QQ Browser

  1. 10.4: Support unknown

Baidu Browser

  1. 7.12: Support unknown

KaiOS Browser

  1. 2.5: Support unknown