Correctly declare progressive enhancements for CSS Custom Properties. 

SANDWORM_MODE: Shai-Hulud-Style npm Worm Hijacks CI Workflows and Poisons AI Toolchains

@csstools/postcss-progressive-custom-properties

Correctly declare progressive enhancements for CSS Custom Properties.

jonathantneal

alaguna

romainmenke

postcss-progressive-custom-properties

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