Can I use
?

CSS Container Query Units

- WD

Container Query Units specify a length relative to the dimensions of a query container. The units include: cqw, cqh, cqi, cqb, cqmin, and cqmax.

Chrome

  1. 4 - 92: Not supported
  2. 93 - 100: Disabled by default
  3. 101 - 103: Disabled by default
  4. 104: Disabled by default
  5. 105 - 107: Supported

Edge

  1. 12 - 103: Not supported
  2. 104: Not supported

Safari

  1. 3.1 - 15.5: Not supported
  2. 15.6: Not supported
  3. 16.0 - TP: Supported

Firefox

  1. 2 - 102: Not supported
  2. 103: Not supported
  3. 104 - 105: Not supported

Opera

  1. 9 - 78: Not supported
  2. 79 - 88: Disabled by default
  3. 89: Disabled by default
  4. 90: Disabled by default

IE

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

Chrome for Android

  1. 104: Not supported

Safari on iOS

  1. 3.2 - 15.4: Not supported
  2. 15.5: Not supported
  3. 16.0: Supported

Samsung Internet

  1. 4 - 16.0: Not supported
  2. 17.0: Not supported

Opera Mini

  1. all: Not supported

Opera Mobile

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

UC Browser for Android

  1. 12.12: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 104: Not supported

Firefox for Android

  1. 101: Not supported

QQ Browser

  1. 10.4: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Not supported
Resources:
Firefox support bug
CSS Tricks: Container Units Should Be Pretty Handy
Blog post: CSS Container Query Units