Tailwind CSS is a utility-first CSS framework that lets you build custom user interfaces by composing small, single-purpose CSS classes directly in your HTML. Rather than writing custom CSS or using pre-designed components, developers use Tailwind to quickly style pages by combining utility classes like `flex`, `text-lg`, and `bg-blue-500`. It's useful when you want faster development without the overhead of a traditional CSS framework or the tedium of writing custom stylesheets.

malfaitrobin, adamwathan, reinink