CSS Variables (Custom Properties)

Estimated support About

47.69% + 9.75% = 57.44%

Based on EmailClientMarketShare.com.

Notes

  • 1

    Partial. The var() function is supported, but not the variable declaration.

  • 2

    Partial. Not supported with non Gmail accounts.

Know something we don't?

Is any of the above data outdated? Or do you want to add a new email client to the list? Heads on to GitHub and edit the data file!

Not comfortable with GitHub? Send us an email or get in touch on Twitter.

Test it yourself

This feature was last tested on February 25, 2020.

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.