The @supports at-rule has been extended several times since its initial release. Once only capable of checking support for property/value pairs, it can now check for a selector using the selector() wrapper function and different font formats and techs using …
Recipes for Detecting Support for CSS At-Rules originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.
https://css-tricks.com/recipes-for-detecting-support-for-css-at-rules/
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