: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.

Chrome

  1. 4 - 58: Not supported
  2. 59: Disabled by default
  3. 60 - 121: Supported
  4. 122: Supported
  5. 123 - 125: Supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 120: Supported
  3. 121: Supported

Safari

  1. 3.1 - 10: Not supported
  2. 10.1 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4 - TP: Supported

Firefox

  1. 2 - 51: Not supported
  2. 52 - 122: Supported
  3. 123: Supported
  4. 124 - 126: Supported

Opera

  1. 9 - 45: Not supported
  2. 46: Disabled by default
  3. 47 - 105: Supported
  4. 106: Supported

IE

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

Chrome for Android

  1. 121: Supported

Safari on iOS

  1. 3.2 - 10.2: Not supported
  2. 10.3 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4: Supported

Samsung Internet

  1. 4 - 7.4: Not supported
  2. 8.2 - 22: Supported
  3. 23: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 121: Supported

Firefox for Android

  1. 122: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
  2. 3: Supported
Resources:
ally.style.focusWithin Polyfill, part of ally.js
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
JS Bin testcase
The Future Generation of CSS Selectors: Level 4: Generalized Input Focus Pseudo-class