Can I use
?

sibling-count() and sibling-index()

Edge

  1. ❌ 12 - 137: Not supported
  2. ✅ 138 - 154: Supported
  3. ✅ 155: Supported

Firefox

  1. ❌ 2 - 153: Not supported
  2. ✅ 154 - 158: Supported
  3. ✅ 159: Supported
  4. ✅ 160 - 162: Supported

Chrome

  1. ❌ 4 - 137: Not supported
  2. ✅ 138 - 155: Supported
  3. ✅ 156: Supported
  4. ✅ 157 - 159: Supported

Safari

  1. ❌ 3.1 - 26.1: Not supported
  2. ✅ 26.2 - 26.6: Supported
  3. ✅ 27: Supported
  4. ✅ 27.1 - TP: Supported

Opera

  1. ﹖ 10 - 12.1: Support unknown
  2. ❌ 15 - 121: Not supported
  3. ✅ 122 - 134: Supported
  4. ✅ 135: Supported

Safari on iOS

  1. ❌ 3.2 - 26.1: Not supported
  2. ✅ 26.2 - 26.6: Supported
  3. ✅ 27.0: Supported
  4. ✅ 27.1 - 27.2: Supported

Android Browser

  1. ﹖ 2.1 - 4.4.4: Support unknown
  2. ✅ 156: Supported

Opera Mobile

  1. ﹖ 12 - 12.1: Support unknown
  2. ❌ 80: Not supported

Chrome for Android

  1. ✅ 156: Supported

Firefox for Android

  1. ✅ 159: Supported

Samsung Internet

  1. ❌ 4 - 29: Not supported
  2. ✅ 30: Supported