text-emphasis styling

- CR

Method of using small symbols next to each glyph to emphasize a run of text, commonly used in East Asian languages. The text-emphasis shorthand, and its text-emphasis-style and text-emphasis-color longhands, can be used to apply marks to the text. The text-emphasis-position property, which inherits separately, allows setting the emphasis marks' position with respect to the text.

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79 - 86: Partial support
  3. 87: Partial support

Firefox

  1. 2 - 44: Not supported
  2. 45: Disabled by default
  3. 46 - 82: Supported
  4. 83: Supported
  5. 84 - 85: Supported

Chrome

  1. 4 - 24: Not supported
  2. 25 - 86: Partial support
  3. 87: Partial support
  4. 88 - 90: Partial support

Safari

  1. 3.1 - 6: Not supported
  2. 6.1 - 7: Partial support
  3. 7.1 - 13.1: Supported
  4. 14: Supported
  5. TP: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 71: Partial support
  3. 72: Partial support

iOS Safari

  1. 3.2 - 6.1: Not supported
  2. 7 - 13.7: Supported
  3. 14: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.3: Not supported
  2. 4.4 - 4.4.4: Partial support
  3. 81: Partial support

Blackberry Browser

  1. 7: Not supported
  2. 10: Partial support

Opera Mobile

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

Chrome for Android

  1. 86: Partial support

Firefox for Android

  1. 82: 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: Supported

Some old WebKit browsers (like Chrome 24) support -webkit-text-emphasis, but does not support CJK languages and is therefore considered unsupported.

Resources:
MDN Web Docs - text-emphasis
A javascript fallback for CSS3 emphasis mark.
Microsoft Edge feature request on UserVoice