If it sounds like I'm a sore winner, that's because I am. But OK. Here we are. *Finally.* Tailwind 4 now comes with a theming system based on—wait for it, wait for it—CSS. #CSS. What a concept! 😅 Yes, the ships have turned around in #WebDev. React 19 can now play in a world where not all of your components are built with React, and Tailwind 4 can now play in a world where not all of your #HTML markup is riddled with utility classes:

That HTML Blog

Tailwind 4.0: a True “Mea Culpa” Moment

If you’re wondering just how much of a game-changer this really is, trust me: it is.