[K0SM0S]

Pico CSS¹ essentially works like that, so you can hard-override any of its exposed variables² to suit your needs.

I discovered it through FastHTML (it was the CSS Jeremy and Johno Whitaker used in their first-ever demo³ early June), and find the 'dx' simple, stupid, in a great way.

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¹ https://picocss.com/

² https://picocss.com/docs/css-variables#all-css-variables

³ https://youtu.be/ptRaku0zyeA