border-radius

The border-radius CSS property rounds the corners of an element’s outer border edge.

Estimated support About

79.19% + 4.89% = 84.08%

Based on EmailClientMarketShare.com.

Notes

  • 1

    Round corners can be used in VML with the RoundRect element. See buttons.cm and VML documentation.

  • 2

    Partial support. Shorthand for setting elliptical borders with the slash / notation is not supported e.g. border-radius: 27% 73% 70% 30% / 30% 34% 66% 70%;.

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Test it yourself

This feature was last tested on March 09, 2021.

If you want to test this feature in the same conditions as we did, you can get our test code and run a test by yourself. Make sure to follow our testing recommendations first.