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 - 130: Supported
  3. ✅ 131: Supported
  4. ✅ 132 - 134: Supported

Edge

  1. ❌ 12 - 85: Not supported
  2. ✅ 86 - 130: Supported
  3. ✅ 131: Supported

Safari

  1. ❌ 3.1 - 11: Not supported
  2. ◐ 11.1 - 18.0: Partial support
  3. ◐ 18.1: Partial support
  4. ◐ 18.2: Partial support
  5. ✅ TP: Supported

Firefox

  1. ❌ 2 - 67: Not supported
  2. ✅ 68 - 131: Supported
  3. ✅ 132: Supported
  4. ✅ 133 - 135: Supported

Opera

  1. ❌ 9 - 71: Not supported
  2. ✅ 72 - 113: Supported
  3. ✅ 114: Supported

IE

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

Chrome for Android

  1. ✅ 131: Supported

Safari on iOS

  1. ❌ 3.2 - 11.2: Not supported
  2. ◐ 11.3 - 18.0: Partial support
  3. ◐ 18.1: Partial support
  4. ◐ 18.2: Partial support

Samsung Internet

  1. ❌ 4 - 13.0: Not supported
  2. ✅ 14.0 - 25: Supported
  3. ✅ 26: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 131: Supported

Firefox for Android

  1. ✅ 132: Supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ✅ 3: Supported
Resources:
Chrome support bug
WebKit support bug
Firefox support bug
CSS-Tricks article
MDN Web Docs - CSS ::marker