CSS Masks

- CR

Method of displaying part of an element, using a selected image as a mask

IE

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

Edge

  1. 12 - 16: Not supported
  2. 17: Disabled by default
  3. 18: Partial support
  4. 79 - 85: Partial support
  5. 86: Partial support

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 52: Partial support
  3. 53 - 80: Supported
  4. 81: Supported
  5. 82 - 83: Supported

Chrome

  1. 4 - 85: Partial support
  2. 86: Partial support
  3. 87 - 89: Partial support

Safari

  1. 3.1 - 3.2: Not supported
  2. 4 - 13.1: Partial support
  3. 14: Partial support
  4. TP: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 70: Partial support
  3. 71: Partial support

iOS Safari

  1. 3.2 - 13.7: Partial support
  2. 14: Partial support

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.3: Partial support
  2. 4.4 - 4.4.4: Partial support
  3. 81: Partial support

Blackberry Browser

  1. 7: Partial support
  2. 10: Partial support

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 59: Partial support

Chrome for Android

  1. 85: Partial support

Firefox for Android

  1. 79: Supported

IE Mobile

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

UC Browser for Android

  1. 12.12: Partial support

Samsung Internet

  1. 4 - 11.2: Partial support
  2. 12.0: Partial support

QQ Browser

  1. 10.4: Partial support

Baidu Browser

  1. 7.12: Partial support

KaiOS Browser

  1. 2.5: Partial support
Resources:
Visual test cases
Detailed blog post
Firefox implementation bug
Detailed blog post (via The Internet Archive)
HTML5 Rocks article
WebPlatform Docs
Sub-features:
CSS clip-path property (for HTML)