The joy of extending Tailwind

2026-07-14 The joy of extending Tailwind One of the biggest upgrade that came with Tailwind 4 has been the new CSS-based configuration and extensibility system. The CSS configuration came with a new simple syntax, which is very close to the way regular CSS is written. This makes it really easy to integrate Tailwind into a project's design system. Let's consider a regular CSS class. .my-class {…