Can I use
?

CSS Gradients

- CR

Method of defining a linear or radial color gradient as a CSS image.

Chrome

  1. ◐ 4 - 9: Partial support
  2. ✅ 10 - 25: Supported
  3. ✅ 26 - 130: Supported
  4. ✅ 131: Supported
  5. ✅ 132 - 134: Supported

Edge

  1. ✅ 12 - 130: Supported
  2. ✅ 131: Supported

Safari

  1. ❌ 3.1 - 3.2: Not supported
  2. ◐ 4 - 5: Partial support
  3. ◐ 5.1 - 6: Partial support
  4. ◐ 6.1 - 15.3: Partial support
  5. ✅ 15.4 - 18.0: Supported
  6. ✅ 18.1: Supported
  7. ✅ 18.2 - TP: Supported

Firefox

  1. ❌ 2 - 3.5: Not supported
  2. ◐ 3.6 - 15: Partial support
  3. ◐ 16 - 35: Partial support
  4. ✅ 36 - 131: Supported
  5. ✅ 132: Supported
  6. ✅ 133 - 135: Supported

Opera

  1. ❌ 9 - 11: Not supported
  2. ◐ 11.1 - 11.5: Partial support
  3. ✅ 11.6 - 12: Supported
  4. ✅ 12.1 - 113: Supported
  5. ✅ 114: Supported

IE

  1. ❌ 5.5 - 9: Not supported
  2. ✅ 10: Supported
  3. ✅ 11: Supported

Chrome for Android

  1. ✅ 131: Supported

Safari on iOS

  1. ◐ 3.2 - 4.3: Partial support
  2. ◐ 5 - 6.1: Partial support
  3. ◐ 7 - 15.3: Partial support
  4. ✅ 15.4 - 18.0: Supported
  5. ✅ 18.1: Supported
  6. ✅ 18.2: Supported

Samsung Internet

  1. ✅ 4 - 25: Supported
  2. ✅ 26: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 11: Not supported
  2. ◐ 11.1 - 11.5: Partial support
  3. ✅ 12: Supported
  4. ✅ 12.1: Supported
  5. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ◐ 2.1 - 3: Partial support
  2. ✅ 4 - 4.3: Supported
  3. ✅ 4.4 - 4.4.4: Supported
  4. ✅ 131: Supported

Firefox for Android

  1. ✅ 132: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported

Syntax used by browsers with prefixed support may be incompatible with that for proper support.

Support can be somewhat emulated in older IE versions using the non-standard "gradient" filter.

Firefox 10+, Opera 11.6+, Chrome 26+ and IE10+ also support the new "to (side)" syntax.

Resources:
Tool to emulate support in IE
WebPlatform Docs
Cross-browser editor
Sub-features:
CSS Repeating Gradients
CSS Conical Gradients