But yeah, how the css works in my site:
https://github.com/hazelweakly/hazelweakly.me/blob/main/tailwind.config.js#L25
^-- This is the tailwind config and does some fun stuff in there to use like utopia "natively" in tailwind classes, n such.
https://github.com/hazelweakly/hazelweakly.me/blob/main/postcss.config.js#L17
^-- This configures all the CSS purging, minimizing, bundling, bla bla. Mostly so that you can put your entire design token setup and component lib into the site and only pay for what you use.