Can I use
?

CSS ::marker pseudo-element

- WD

The ::marker pseudo-element allows list item markers to be styled or have their content value customized.

Chrome

  1. 4 - 85: Not supported
  2. 86 - 105: Supported
  3. 106: Supported
  4. 107 - 109: Supported

Edge

  1. 12 - 85: Not supported
  2. 86 - 105: Supported
  3. 106: Supported

Safari

  1. 3.1 - 11: Not supported
  2. 11.1 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1: Supported
  5. TP: Supported

Firefox

  1. 2 - 67: Not supported
  2. 68 - 104: Supported
  3. 105: Supported
  4. 106 - 107: Supported

Opera

  1. 9 - 71: Not supported
  2. 72 - 90: Supported
  3. 91: Supported

IE

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

Chrome for Android

  1. 106: Supported

Safari on iOS

  1. 3.2 - 11.2: Not supported
  2. 11.3 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1: Supported

Samsung Internet

  1. 4 - 13.0: Not supported
  2. 14.0 - 17.0: Supported
  3. 18.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 64: Supported

UC Browser for Android

  1. 13.4: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 106: Supported

Firefox for Android

  1. 105: Supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
Resources:
Chrome support bug
WebKit support bug
Firefox support bug
CSS-Tricks article
MDN Web Docs - CSS ::marker