Re: [csswg-drafts] [css-env][css-conditional] Need an approach to check whether an environment variable is supported (#3576)

So I thought that was the purpose for the fallback value in `env()`? But maybe there's a use-case for detecting a particular environment variable?

Ideally you'd use `env(my-var, 10px)` or such.

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Received on Thursday, 31 January 2019 11:08:58 UTC