Tailwind CSS

Tailwind CSS is a utility-first CSS framework created by Adam Wathan that provides low-level utility classes for building custom designs directly in HTML markup, enabling rapid UI development and smaller production CSS bundles through its intelligent purge mechanism. The utility class system includes hundreds of composable classes covering spacing scales, typography, customizable color palettes, flexbox and grid layout, responsive breakpoints, hover and focus variants, dark mode support, and arbitrary value syntax. The configuration system uses a JavaScript file where designers define custom colors, spacing scales, font families, breakpoints, and plugin extensions, creating a single source of truth for the design system. The Just-In-Time compiler generates only the CSS classes actually used, resulting in production CSS files typically under ten kilobytes. The framework version 3.0 introduced the JIT engine as default, version 4.0 brought a new Oxide engine with significant performance improvements. The ecosystem includes official plugins for forms, typography, and aspect ratios. Companies using Tailwind include GitHub, Netflix, OpenAI, and Stripe. Designed for frontend developers, UI designers, and web development teams seeking rapid, consistent, and maintainable styling workflows.