CSS :read-only and :read-write selectors

- LS

:read-only and :read-write pseudo-classes to match elements which are considered user-alterable

IE

  1. 5.5 - 10
  2. 11

Edge

  1. 12
  2. 13 - 81
  3. 83

Firefox

  1. 2
  2. 3 - 77
  3. 78
  4. 79 - 80

Chrome

  1. 4 - 14
  2. 15 - 35
  3. 36 - 81
  4. 83
  5. 84 - 86

Safari

  1. 3.1 - 3.2
  2. 4 - 8
  3. 9 - 13
  4. 13.1
  5. 14 - TP

Opera

  1. 9 - 11.1
  2. 11.5 - 22
  3. 23 - 68
  4. 69

iOS Safari

  1. 3.2 - 4.1
  2. 4.2 - 8.4
  3. 9 - 13.3
  4. 13.4
  5. 14.0

Opera Mini

  1. all

Android Browser

  1. 2.1 - 2.2
  2. 2.3 - 4.4.4
  3. 81

Blackberry Browser

  1. 7
  2. 10

Opera Mobile

  1. 10 - 11.1
  2. 11.5 - 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 - 11.2
  2. 12.0

QQ Browser

  1. 10.4

Baidu Browser

  1. 7.12

KaiOS Browser

  1. 2.5
Resources:
Firefox feature request bug
CSS Tricks article
MDN :read-only
MDN Web Docs - CSS :read-write
Selectors Level 4 ยง The Mutability Pseudo-classes: :read-only and :read-write