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CSS :read-only and :read-write selectors

- LS

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

Chrome

  1. ﹖ 4 - 14: Support unknown
  2. ◐ 15 - 35: Partial support
  3. ✅ 36 - 136: Supported
  4. ✅ 137: Supported
  5. ✅ 138 - 140: Supported

Edge

  1. ❌ 12: Not supported
  2. ✅ 13 - 136: Supported
  3. ✅ 137: Supported

Safari

  1. ﹖ 3.1 - 3.2: Support unknown
  2. ◐ 4 - 8: Partial support
  3. ✅ 9 - 18.4: Supported
  4. ✅ 18.5: Supported
  5. ✅ 26.0 - TP: Supported

Firefox

  1. ﹖ 2: Support unknown
  2. ✅ 3 - 77: Supported
  3. ✅ 78 - 138: Supported
  4. ✅ 139: Supported
  5. ✅ 140 - 142: Supported

Opera

  1. ﹖ 9 - 11.1: Support unknown
  2. ◐ 11.5 - 22: Partial support
  3. ✅ 23 - 116: Supported
  4. ✅ 117: Supported

IE

  1. ❌ 5.5 - 10: Not supported
  2. ❌ 11: Not supported

Chrome for Android

  1. ✅ 137: Supported

Safari on iOS

  1. ﹖ 3.2 - 4.1: Support unknown
  2. ◐ 4.2 - 8.4: Partial support
  3. ✅ 9 - 18.4: Supported
  4. ✅ 18.5: Supported
  5. ✅ 26.0: Supported

Samsung Internet

  1. ✅ 4 - 27: Supported
  2. ✅ 28: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 11.1: Not supported
  2. ◐ 11.5 - 12.1: Partial support
  3. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ﹖ 2.1 - 2.2: Support unknown
  2. ◐ 2.3 - 4.4.4: Partial support
  3. ✅ 137: Supported

Firefox for Android

  1. ✅ 139: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported
Resources:
Firefox feature request bug
CSS Tricks article
MDN :read-only
MDN Web Docs - CSS :read-write
Selectors Level 4 § The Mutability Pseudo-classes: :read-only and :read-write