CSS & Styling Packages
Styling utilities, CSS-in-JS, and class-composition helpers for building consistent, maintainable interface styling (Tailwind utilities, clsx, cva, Emotion).
Packages in CSS & Styling
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unocss
An instant, on-demand atomic CSS engine with zero core utilities and fully pluggable presets.
Radix UI Themes
Radix UI's official React component library for building accessible, themeable design systems with pre-styled components and design tokens.
react-responsive
CSS media queries as React hooks and components, with SSR-safe device detection.
tailwindcss-radix
Tailwind CSS utilities and variants for styling Radix Primitives' data-state attributes.
less-loader
Webpack loader that compiles Less stylesheets into CSS
tailwind-scrollbar-hide
A tiny, zero-dependency Tailwind CSS plugin that hides scrollbars visually while keeping content scrollable.
postcss-selector-parser
A CSS selector parser and AST toolkit for building PostCSS plugins that inspect, transform, and rewrite selectors.
HeroUI
Accessible, Tailwind-native React components with a zero-boilerplate compound API.
github-markdown-css
Drop-in CSS that renders any markdown container in GitHub's exact visual style, light or dark.
@tailwindcss/line-clamp
A Tailwind CSS plugin that adds line-clamp-{n} utilities for visually truncating text after a fixed number of lines.
vanilla-extract
Zero-runtime, type-safe stylesheets written in TypeScript
CSS.escape
A lightweight, spec-compliant polyfill for the CSS.escape() method defined in CSSOM, for safely escaping CSS identifiers.
tinycss2
Low-level CSS Syntax Level 3 parser and generator for Python
node-sass
Node.js bindings to LibSass, the fast C/C++ implementation of Sass, for compiling SCSS and indented-syntax stylesheets to CSS.
Styled System
Responsive, theme-based style props for building design systems with React.
clean-css
A battle-tested CSS minifier for Node.js and the browser with three tunable optimization levels.
focus-visible
A polyfill for the CSS :focus-visible pseudo-class, shown only for keyboard/assistive focus
tss-react
Type-safe CSS-in-JS styling for React, powered by Emotion, with first-class MUI support
postcss-prefixwrap
A PostCSS plugin that wraps every CSS rule in a container selector to scope styles safely.
mode-watcher
SSR-friendly light and dark mode management for Svelte and SvelteKit apps, with zero flash-of-unstyled-content on load.
@swc/plugin-emotion
The official SWC compiler plugin that compiles Emotion's css-in-js calls at build time instead of at runtime.
postcss-value-parser
Transforms CSS declaration values and at-rule params into a traversable node tree.
Shoelace
A forward-thinking library of professionally designed, accessible web components that work with any framework.
webfontloader
Cross-browser JavaScript library that gives you a single, consistent API for loading @font-face web fonts from any provider.