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CSS Device Adaptation

- WD

Method of overriding the size of viewport in web page using the @viewport rule, replacing Apple's own popular <meta> viewport implementation. Includes the extend-to-zoom width value.

IE

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

Edge

  1. 12 - 18: Partial support
  2. 79 - 86: Disabled by default
  3. 87: Disabled by default

Firefox

  1. 2 - 83: Not supported
  2. 84: Not supported
  3. 85 - 86: Not supported

Chrome

  1. 4 - 28: Not supported
  2. 29 - 86: Disabled by default
  3. 87: Disabled by default
  4. 88 - 90: Disabled by default

Safari

  1. 3.1 - 13.1: Not supported
  2. 14: Not supported
  3. TP: Not supported

Opera

  1. 9 - 39: Not supported
  2. 40 - 71: Disabled by default
  3. 72: Disabled by default

iOS Safari

  1. 3.2 - 13.7: Not supported
  2. 14: Not supported

Opera Mini

  1. all: Partial support

Android Browser

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

Opera Mobile

  1. 10: Not supported
  2. 11 - 12.1: Partial support
  3. 59: Not supported

Chrome for Android

  1. 87: Not supported

Firefox for Android

  1. 83: Not supported

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 12.0: Not supported
  2. 13.0: Not supported

QQ Browser

  1. 10.4: Disabled by default

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Not supported

Due to lack of implementation this specification is slated to be retired.

Resources:
Device adaptation in Internet Explorer 10
WebKit tracking bug
Mozilla tracking bug
Chrome tracking bug
Introduction to meta viewport and @viewport in Opera Mobile