borderRadius

The border-radius CSS property rounds the corners of an element's outer border edge. You can set a single radius to make circular corners, or two radii to make elliptical corners.

Syntax: <length-percentage>{1,4} [ / <length-percentage>{1,4} ]?

| Chrome  | Firefox | Safari  |  Edge  |  IE   |
| :-----: | :-----: | :-----: | :----: | :---: |
|    4    |    4    |    5    |   12   |   9   |
|    1′   |         |    3′   |        |       |

See also