zIndex

The z-index CSS property sets the z-order of a positioned element and its descendants or flex items. Overlapping elements with a larger z-index cover those with a smaller one.

Syntax: auto | <integer>

Initial value: auto

| Chrome | Firefox | Safari |  Edge  |  IE   |
| :----: | :-----: | :----: | :----: | :---: |
|   1    |    1    |   1    |   12   |   4   |

See also