Can I use
?

CSS Cascade Layers

- WD

The @layer at-rule allows authors to explicitly layer their styles in the cascade, before specificity and order of appearance are considered.

IE

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

Edge

  1. 12 - 95: Not supported
  2. 96: Disabled by default

Firefox

  1. 2 - 93: Not supported
  2. 94: Disabled by default
  3. 95 - 96: Disabled by default

Chrome

  1. 4 - 95: Not supported
  2. 96: Disabled by default
  3. 97 - 99: Disabled by default

Safari

  1. 3.1 - 15: Not supported
  2. 15.1: Not supported
  3. TP: Disabled by default

Opera

  1. 9 - 81: Not supported
  2. 82: Not supported

Safari on iOS

  1. 3.2 - 14.8: Not supported
  2. 15: Not supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 96: Not supported

Opera Mobile

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

Chrome for Android

  1. 96: Not supported

Firefox for Android

  1. 94: Not supported

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 14.0: Not supported
  2. 15.0: Not supported

QQ Browser

  1. 10.4: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Not supported
Resources:
WebKit support bug
Firefox support bug
Collection of demos
Chromium support bug
The Future of CSS: Cascade Layers (CSS @layer)