Can I use
?

CSS Cascade Layers

- CR

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

Chrome

  1. ❌ 4 - 95: Not supported
  2. ❌ 96 - 98: Disabled by default
  3. ✅ 99 - 134: Supported
  4. ✅ 135: Supported
  5. ✅ 136 - 138: Supported

Edge

  1. ❌ 12 - 95: Not supported
  2. ❌ 96 - 98: Disabled by default
  3. ✅ 99 - 134: Supported
  4. ✅ 135: Supported

Safari

  1. ❌ 3.1 - 15.3: Not supported
  2. ✅ 15.4 - 18.3: Supported
  3. ✅ 18.4: Supported
  4. ✅ 18.5 - TP: Supported

Firefox

  1. ❌ 2 - 93: Not supported
  2. ❌ 94 - 96: Disabled by default
  3. ✅ 97 - 136: Supported
  4. ✅ 137: Supported
  5. ✅ 138 - 140: Supported

Opera

  1. ❌ 9 - 85: Not supported
  2. ✅ 86 - 116: Supported
  3. ✅ 117: Supported

IE

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

Chrome for Android

  1. ✅ 135: Supported

Safari on iOS

  1. ❌ 3.2 - 15.3: Not supported
  2. ✅ 15.4 - 18.3: Supported
  3. ✅ 18.4: Supported
  4. ✅ 18.5: Supported

Samsung Internet

  1. ❌ 4 - 17.0: Not supported
  2. ✅ 18.0 - 26: Supported
  3. ✅ 27: 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. ✅ 135: Supported

Firefox for Android

  1. ✅ 137: Supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ❌ 13.52: Not supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported
Resources:
WebKit support bug
Firefox support bug
Collection of demos
Chromium support bug
The Future of CSS: Cascade Layers (CSS @layer)