CSS position:sticky

- WD

IE

  1. 8
  2. 9
  3. 10
  4. 11

Edge

  1. 91
  2. 92
  3. 93
  4. 94

Firefox

  1. 90
  2. 91
  3. 92
  4. 93
  5. 94
  6. 95

Chrome

  1. 91
  2. 92
  3. 93
  4. 94
  5. 95
  6. 96
  7. 97

Safari

  1. 13.1
  2. 14
  3. 14.1
  4. 15
  5. TP

Opera

  1. 77
  2. 78
  3. 79
  4. 80

Safari on iOS

  1. 13.4-13.7
  2. 14.0-14.4
  3. 14.5-14.8
  4. 15

Opera Mini

  1. all

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 94

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 64

Chrome for Android

  1. 94

Firefox for Android

  1. 92

UC Browser for Android

  1. 12.12

Samsung Internet

  1. 12.0
  2. 13.0
  3. 14.0
  4. 15.0

QQ Browser

  1. 10.4

Baidu Browser

  1. 7.12

KaiOS Browser

  1. 2.5

Any ancestor between the sticky element and its user-scrollable container with overflow computed as anything but visible/clip will effectively prevent sticking behavior.