Tailwind CSS v4 is a significant shift in how we think about utility-first CSS. It moves away from JavaScript-heavy configuration towards a CSS-first approach.
The Oxide Engine
The new engine is incredibly fast, offering nearly instantaneous rebuilds during development. It's written in Rust and optimized for performance.
Simplified Config
No more massive tailwind.config.js files. Most configurations can now be done directly within your CSS files using the @theme directive. This makes the dev experience much cleaner and closer to standard CSS.



