CSS background-attachment

- CR

Method of defining how a background image is attached to a scrollable element. Values include scroll (default), fixed and local.

IE

  1. 5.5 - 8: Partial support
  2. 9 - 10: Supported
  3. 11: Supported

Edge

  1. 12 - 100: Supported
  2. 101: Supported

Firefox

  1. 2 - 24: Partial support
  2. 25 - 99: Supported
  3. 100: Supported
  4. 101 - 102: Supported

Chrome

  1. 4 - 100: Supported
  2. 101: Supported
  3. 102 - 104: Supported

Safari

  1. 3.1 - 4: Partial support
  2. 5 - 12.1: Supported
  3. 13 - 13.1: Partial support
  4. 14 - 15.3: Not supported
  5. 15.4: Not supported
  6. TP: Not supported

Opera

  1. 9 - 10.1: Partial support
  2. 10.5 - 85: Supported
  3. 86: Supported
  4. 87: Supported

Safari on iOS

  1. 3.2 - 4.3: Not supported
  2. 5 - 12.5: Partial support
  3. 13 - 15.3: Not supported
  4. 15.4: Not supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4: Not supported
  2. 4.1 - 4.3: Partial support
  3. 4.4 - 4.4.4: Not supported
  4. 101: Not supported

Opera Mobile

  1. 10: Partial support
  2. 11 - 12.1: Supported
  3. 64: Not supported

Chrome for Android

  1. 101: Supported

Firefox for Android

  1. 100: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 15.0: Partial support
  3. 16.0: Partial support

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Partial support

KaiOS Browser

  1. 2.5: Supported

Most mobile devices have a delay in updating the background position after scrolling a page with fixed backgrounds.

Resources:
MDN Web Docs - background-attachment