opacity

The opacity CSS property sets the opacity of an element. Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency.

Syntax: <alpha-value>

Initial value: 1

| Chrome | Firefox | Safari |  Edge  |  IE   |
| :----: | :-----: | :----: | :----: | :---: |
|   1    |    1    |   2    |   12   |   9   |

See also