@supports to detect if a browser supports CSS VariablesAs tweeted by Ire Aderinokun: 
@supports (color: var(--)) {
/* has support */
}Not too surprising if you’ve used Feature Queries before, but what does surprise me is that you can make it work by only passing the prefix of CSS Custom Properties (e.g. --) into the var() function.
See the Pen Supports CSS Variables by Ire Aderinokun (@ire) on CodePen.
@supports to detect if a browser supports CSS VariablesBram.us is the technical/geeky weblog of Bram Van Damme (nicknamed Bramus!), a 34 year old geezer from Vinkt (Belgium).
Main topics are web related technologies, along with other geeky things (Star Wars, robots, …) and personal interests (music, movies, …).
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Another option: @supports (–a: 0).
Ooh, nice! 🙂