: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
  2. 9
  3. 10
  4. 11

Edge

  1. 12 - 18
  2. 79 - 81
  3. 83

Firefox

  1. 2 - 3.6
  2. 4 - 5
  3. 6 - 50
  4. 51 - 75
  5. 76
  6. 77 - 78

Chrome

  1. 4 - 14
  2. 15 - 38
  3. 39 - 81
  4. 83
  5. 84 - 86

Safari

  1. 3.1 - 5
  2. 5.1
  3. 6
  4. 6.1 - 10
  5. 10.1 - 13
  6. 13.1
  7. TP

Opera

  1. 9 - 11.5
  2. 11.6 - 12.1
  3. 15 - 25
  4. 26 - 67
  5. 68

iOS Safari

  1. 3.2 - 6.1
  2. 7 - 10.2
  3. 10.3 - 13.3
  4. 13.4

Opera Mini

  1. all

Android Browser

  1. 2.1 - 3
  2. 4 - 4.3
  3. 4.4
  4. 4.4.3
  5. 81

Blackberry Browser

  1. 7
  2. 10

Opera Mobile

  1. 10 - 12
  2. 12.1
  3. 46

Chrome for Android

  1. 81

Firefox for Android

  1. 68

IE Mobile

  1. 10
  2. 11

UC Browser for Android

  1. 12.12

Samsung Internet

  1. 4 - 10.1
  2. 11.1

QQ Browser

  1. 10.4

Baidu Browser

  1. 7.12

KaiOS Browser

  1. 2.5
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`