Can I use
?

CSS Reflections

- UNOFF

Method of displaying a reflection of an element

Chrome

  1. ✅ 4 - 156: Supported
  2. ✅ 157: Supported
  3. ✅ 158 - 160: Supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ✅ 79 - 155: Supported
  3. ✅ 156: Supported

Safari

  1. ❌ 3.1 - 3.2: Not supported
  2. ✅ 4 - 27.1: Supported
  3. ✅ 27.2: Supported
  4. ✅ 27.3 - TP: Supported

Firefox

  1. ❌ 2 - 159: Not supported
  2. ❌ 160: Not supported
  3. ❌ 161 - 163: Not supported

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 138: Supported
  3. ✅ 139: Supported

IE

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

Chrome for Android

  1. ✅ 157: Supported

Safari on iOS

  1. ✅ 3.2 - 26.6: Supported
  2. ✅ 27.0: Supported
  3. ✅ 27.1 - 27.2: Supported

Samsung Internet

  1. ✅ 4 - 30: Supported
  2. ✅ 31: 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: Supported
  2. ✅ 157: Supported

Firefox for Android

  1. ❌ 160: Not supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported

Similar effect can be achieved in Firefox 4+ using the -moz-element() background property

Resources:
MDN - -webkit-box-reflect
WebKit blog post