Intrinsic & Extrinsic Sizing

- WD

Allows for the heights and widths to be specified in intrinsic values using the max-content, min-content, fit-content and stretch (formerly fill) properties.

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79: Supported
  3. 80: Supported

Firefox

  1. 2: Not supported
  2. 3 - 65: Partial support
  3. 66 - 72: Partial support
  4. 73: Partial support
  5. 74 - 75: Partial support

Chrome

  1. 4 - 21: Not supported
  2. 22 - 45: Supported
  3. 46 - 79: Supported
  4. 80: Supported
  5. 81 - 83: Supported

Safari

  1. 3.1 - 6: Not supported
  2. 6.1 - 8: Partial support
  3. 9 - 10.1: Partial support
  4. 11 - 12.1: Partial support
  5. 13: Partial support
  6. TP: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 32: Supported
  3. 33: Supported
  4. 34: Supported
  5. 35 - 65: Supported
  6. 66: Supported

iOS Safari

  1. 3.2 - 6.1: Not supported
  2. 7 - 8.4: Partial support
  3. 9 - 13.1: Partial support
  4. 13.2: Partial support
  5. 13.3: Partial support

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.3: Not supported
  2. 4.4 - 4.4.4: Supported
  3. 80: Supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 46: Supported

Chrome for Android

  1. 80: Supported

Firefox for Android

  1. 68: Partial support

IE Mobile

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

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4: Supported
  2. 5 - 9.2: Supported
  3. 10.1: Supported

QQ Browser

  1. 1.2: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Partial support

Prefixes are on the values, not the property names (e.g. -webkit-min-content)

Older webkit browsers also support the unofficial intrinsic value which acts the same as max-content.

Resources:
Min-Content tutorial