tailwindcss

Utility-first CSS frameworks like Tailwind CSS let you apply pre-built classes directly in HTML for fast styling. Tailwind generates only the CSS you use at build time, eliminating custom stylesheets and reducing bundle size while maintaining design consistency across components.

Tailwind CSS works across React, Vue, Svelte, Next.js, and other web frameworks. It integrates via PostCSS and build tools like Vite, with framework-specific setup guidance provided to ensure zero runtime overhead and optimized CSS generation.

Tailwind CSS supports dark mode through class-based and system-preference approaches, letting you toggle themes by applying utility variants. Custom themes extend Tailwind's configuration to define color palettes, spacing, and typography that propagate across all utility classes.

Utility-first styling composes low-level, single-purpose classes directly in markup for rapid development, while traditional CSS requires writing custom stylesheets. Tailwind's approach reduces decision-making overhead, improves consistency, and eliminates unused CSS through build-time tree-shaking.

Tailwind CSS is mobile-first by default, with responsive prefixes built into every utility class. No additional configuration is required to start; breakpoint customization is optional and managed through Tailwind's configuration file if you need non-standard screen sizes.

Tailwind processes CSS at build time, scanning your markup for used classes and generating only the utilities you apply. Tree-shaking removes unused styles automatically, resulting in minimal production files with zero runtime CSS generation overhead.