Add CSS.supports #489
Description
This is an absolutely essential API - it allows for checking browser support for CSS properties.
https://caniuse.com/css-supports-api
https://developer.mozilla.org/en-US/docs/Web/API/CSS/supports
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This is an absolutely essential API - it allows for checking browser support for CSS properties.
https://caniuse.com/css-supports-api
https://developer.mozilla.org/en-US/docs/Web/API/CSS/supports