Can I use
?

CSS Counter Styles

- CR

The @counter-style CSS at-rule allows custom counter styles to be defined. A @counter-style rule defines how to convert a counter value into a string representation.

Chrome

  1. 4 - 90: Not supported
  2. 91 - 108: Partial support
  3. 109: Partial support
  4. 110 - 112: Partial support

Edge

  1. 12 - 90: Not supported
  2. 91 - 108: Partial support
  3. 109: Partial support

Safari

  1. 3.1 - 16.2: Not supported
  2. 16.3: Not supported
  3. TP: Not supported

Firefox

  1. 2 - 32: Not supported
  2. 33 - 108: Partial support
  3. 109: Partial support
  4. 110 - 111: Partial support

Opera

  1. 9 - 76: Not supported
  2. 77 - 93: Partial support
  3. 94: Partial support

IE

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

Chrome for Android

  1. 109: Partial support

Safari on iOS

  1. 3.2 - 16.2: Not supported
  2. 16.3: Not supported

Samsung Internet

  1. 4 - 15.0: Not supported
  2. 16.0 - 18.0: Partial support
  3. 19.0: Partial support

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: Partial support

UC Browser for Android

  1. 13.4: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 109: Partial support

Firefox for Android

  1. 109: Partial support

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Partial support

KaiOS Browser

  1. 2.5: Partial support
Resources:
WebKit bug on support for @counter-style
MDN Web Docs - CSS counter style
CSS @counter-style Demo