CSS outline properties

- CR

The CSS outline properties draw a border around an element that does not affect layout, making it ideal for highlighting. This covers the outline shorthand, as well as outline-width, outline-style, outline-color and outline-offset.

Chrome

  1. 4 - 122: Supported
  2. 123: Supported
  3. 124 - 126: Supported

Edge

  1. 12 - 14: Partial support
  2. 15 - 122: Supported
  3. 123: Supported

Safari

  1. 3.1 - 17.3: Supported
  2. 17.4: Supported
  3. 17.5 - TP: Supported

Firefox

  1. 2 - 123: Supported
  2. 124: Supported
  3. 125 - 127: Supported

Opera

  1. 9 - 11.5: Partial support
  2. 11.6 - 12: Supported
  3. 12.1: Supported
  4. 15 - 108: Supported
  5. 109: Supported

IE

  1. 5.5 - 7: Not supported
  2. 8: Partial support
  3. 9 - 10: Partial support
  4. 11: Partial support

Chrome for Android

  1. 123: Supported

Safari on iOS

  1. 3.2 - 17.3: Supported
  2. 17.4: Supported
  3. 17.5: Supported

Samsung Internet

  1. 4 - 23: Supported
  2. 24: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 11.5: Partial support
  2. 12 - 12.1: Supported
  3. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Supported
  2. 123: Supported

Firefox for Android

  1. 124: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
MDN Web Docs - CSS outline
CSS Basic User Interface Module Level 3