Can I use
?

CSS selector: `:open`

IE

  1. ❌ 6 - 10: Not supported
  2. ❌ 11: Not supported

Edge

  1. ❌ 12 - 113: Not supported
  2. ◐ 114 - 121: Partial support
  3. ❌ 122 - 132: Not supported
  4. ✅ 133 - 155: Supported
  5. ✅ 156: Supported

Firefox

  1. ❌ 2 - 135: Not supported
  2. ✅ 136 - 158: Supported
  3. ✅ 159: Supported
  4. ✅ 160 - 162: Supported

Chrome

  1. ❌ 4 - 113: Not supported
  2. ◐ 114 - 121: Partial support
  3. ❌ 122 - 132: Not supported
  4. ✅ 133 - 156: Supported
  5. ✅ 157: Supported
  6. ✅ 158 - 160: Supported

Safari

  1. ❌ 3.1 - 26.4: Not supported
  2. ✅ 26.5 - 27.1: Supported
  3. ✅ 27.2: Supported
  4. ✅ 27.3 - TP: Supported

Opera

  1. ❌ 10 - 99: Not supported
  2. ◐ 100 - 107: Partial support
  3. ❌ 108 - 117: Not supported
  4. ✅ 118 - 138: Supported
  5. ✅ 139: Supported

Safari on iOS

  1. ❌ 3.2 - 26.4: Not supported
  2. ✅ 26.5 - 26.6: Supported
  3. ✅ 27.0: Supported
  4. ✅ 27.1 - 27.2: Supported

Opera Mini

  1. ﹖ all: Support unknown

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 157: Supported

Opera Mobile

  1. ❌ 12 - 12.1: Not supported
  2. ◐ 80: Partial support

Chrome for Android

  1. ✅ 157: Supported

Firefox for Android

  1. ✅ 159: Supported

UC Browser for Android

  1. ❌ 15.5: Not supported

Samsung Internet

  1. ❌ 4 - 22: Not supported
  2. ◐ 23 - 25: Partial support
  3. ❌ 26 - 28: Not supported
  4. ✅ 29 - 30: Supported
  5. ✅ 31: Supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ﹖ 13.52: Support unknown

KaiOS Browser

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