:focus-within CSS pseudo-class

- UNOFF

The :focus-within pseudo-class matches elements that either themselves match :focus or that have descendants which match :focus.

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79 - 85: Supported
  3. 86: Supported

Firefox

  1. 2 - 51: Not supported
  2. 52 - 80: Supported
  3. 81: Supported
  4. 82 - 83: Supported

Chrome

  1. 4 - 58: Not supported
  2. 59: Disabled by default
  3. 60 - 85: Supported
  4. 86: Supported
  5. 87 - 89: Supported

Safari

  1. 3.1 - 10: Not supported
  2. 10.1 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 9 - 45: Not supported
  2. 46: Disabled by default
  3. 47 - 70: Supported
  4. 71: Supported

iOS Safari

  1. 3.2 - 10.2: Not supported
  2. 10.3 - 13.7: Supported
  3. 14: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 81: Supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 59: Supported

Chrome for Android

  1. 85: Supported

Firefox for Android

  1. 79: Supported

IE Mobile

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

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 7.4: Not supported
  2. 8.2 - 11.2: Supported
  3. 12.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Support unknown

KaiOS Browser

  1. 2.5: Not supported
Resources:
ally.style.focusWithin Polyfill, part of ally.js
JS Bin testcase
Chromium issue #617371: Implement `:focus-within` pseudo-class from Selectors Level 4
WebKit bug #140144: Add support for CSS4 `:focus-within` pseudo
Mozilla bug #1176997: Add support for pseudo class `:focus-within`
MDN Web Docs - :focus-within
Microsoft Edge feature request on UserVoice
The Future Generation of CSS Selectors: Level 4: Generalized Input Focus Pseudo-class