CSS3 Opacity

- REC

Chrome

  1. 127
  2. 128
  3. 129
  4. 130
  5. 131
  6. 132
  7. 133

Edge

  1. 127
  2. 128
  3. 129
  4. 130

Safari

  1. 17.4
  2. 17.5
  3. 17.6
  4. 18.0
  5. 18.1
  6. TP

Firefox

  1. 129
  2. 130
  3. 131
  4. 132
  5. 133
  6. 134
  7. 135

Opera

  1. 111
  2. 112
  3. 113
  4. 114

IE

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

Chrome for Android

  1. 130

Safari on iOS

  1. 17.4
  2. 17.5
  3. 17.6-17.7
  4. 18.0
  5. 18.1

Samsung Internet

  1. 23
  2. 24
  3. 25
  4. 26

Opera Mini

  1. all

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 80

UC Browser for Android

  1. 15.5

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 130

Firefox for Android

  1. 130

QQ Browser

  1. 14.9

Baidu Browser

  1. 13.52

KaiOS Browser

  1. 2.5
  2. 3.0-3.1

Transparency for elements in IE8 and older can be achieved using the proprietary "filter" property and does not work well with PNG images using alpha transparency.