:indeterminate CSS pseudo-class

- UNOFF

The :indeterminate pseudo-class matches indeterminate checkboxes, indeterminate <progress> bars, and radio buttons with no checked button in their radio button group.

IE

  1. 5.5 - 8: Not supported
  2. 9: Partial support
  3. 10: Partial support
  4. 11: Partial support

Edge

  1. 12 - 18: Partial support
  2. 79: Supported
  3. 80: Supported

Firefox

  1. 2 - 3.6: Support unknown
  2. 4 - 5: Partial support
  3. 6 - 50: Partial support
  4. 51 - 72: Supported
  5. 73: Supported
  6. 74 - 75: Supported

Chrome

  1. 4 - 14: Support unknown
  2. 15 - 38: Partial support
  3. 39 - 79: Supported
  4. 80: Supported
  5. 81 - 83: Supported

Safari

  1. 3.1 - 5: Support unknown
  2. 5.1: Partial support
  3. 6: Support unknown
  4. 6.1 - 10: Partial support
  5. 10.1 - 12.1: Supported
  6. 13: Supported
  7. TP: Supported

Opera

  1. 9 - 11.5: Support unknown
  2. 11.6 - 12.1: Partial support
  3. 15 - 25: Partial support
  4. 26 - 65: Supported
  5. 66: Supported

iOS Safari

  1. 3.2 - 6.1: Support unknown
  2. 7 - 10.2: Partial support
  3. 10.3 - 13.1: Supported
  4. 13.2: Supported
  5. 13.3: Supported

Opera Mini

  1. all: Partial support

Android Browser

  1. 2.1 - 3: Support unknown
  2. 4 - 4.3: Partial support
  3. 4.4: Partial support
  4. 4.4.3: Support unknown
  5. 80: Supported

Blackberry Browser

  1. 7: Support unknown
  2. 10: Partial support

Opera Mobile

  1. 10 - 12: Support unknown
  2. 12.1: Partial support
  3. 46: Supported

Chrome for Android

  1. 80: Supported

Firefox for Android

  1. 68: Partial support

IE Mobile

  1. 10: Partial support
  2. 11: Partial support

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 9.2: Supported
  2. 10.1: Supported

QQ Browser

  1. 1.2: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Partial support
Resources:
JS Bin testcase
WebKit Bug 156270 - `:indeterminate` pseudo-class should match radios whose group has no checked radio
Mozilla Bug 885359 - Radio groups without a selected radio button should have `:indeterminate` applying
EdgeHTML issue 7124038 - `:indeterminate` pseudo-class doesn't match radio buttons
MDN Web Docs - CSS :indeterminate
HTML specification for `:indeterminate`