JSPM

Custom Properties polyfill for IE11.

Default CSS color variables for Tachyons

400 useful, ready-to-import CSS variables generated straight from Tailwind source files.

Simple and elegant line icons.

CSS library for building beautiful and well working web UI components within Bentley Systems & iTwin.js applications.

Self-host the Open Sans font in a neatly bundled NPM package.

Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools

PostCSS plugin to get drupal theme breakpoints in css variables

CSS variables

Self-host the Poppins font in a neatly bundled NPM package.

Blazing fast zero-runtime CSS in JS library

bootstrap-sass is a Sass-powered version of Bootstrap 3, ready to drop right into your Sass powered applications.

Utility-first CSS for the future

This a script to generate color specific styles less file and which you can use to change theme dynamically in browser

Core SCSS variables to start a design system

Self-host the Inter font in a neatly bundled NPM package.

Blazing fast zero-runtime CSS in JS library

Export computed variables from less and sass css-modules automatically.

Port of YUI CSS Compressor to NodeJS

CLI tool for manipulate with your css, migrate scss variables etc

Event-driven custom CSS variables

PostCSS plugin Share variables between different css files with scope

SASS resources loader for Webpack

Vite plugin to generate CSS variables from JavaScript/TypeScript config

SASS resources loader for Webpack - with a small hack to attempt to load same variables file both into scss and sass files

PostCSS preset for Mantine (7.0+) applications

Use CSS Custom Properties with Sass

Blazing fast zero-runtime CSS in JS library

Blazing fast zero-runtime CSS in JS library

Breakpoint variables for Savvy CSS.

Typography variables for Savvy CSS.

A set of SCSS mixins and variables to organize custom media queries.

A spacer (margins/paddings/gaps) management system for web components using css variables (css custom properties).

Color codes, classes, and variables

A JavaScript text diff implementation.

Self-host the IBM Plex Sans font in a neatly bundled NPM package.

Strict TypeScript and Flow types for style based on MDN data

Stylis plugin that transforms CSS variable into static values for non-supported browsers.

Self-host the Montserrat font in a neatly bundled NPM package.

A collection of loading indicators animated with CSS

CSS variables with BEM modifiers for material design color palette

Theme variables generation plugin

Sharable stylelint config used by GitHub's CSS

Self-host the Material Icons font in a neatly bundled NPM package.

CSS framework and utils to build FESTO web applications

Open Web data by the Mozilla Developer Network

Self-host the Roboto Mono font in a neatly bundled NPM package.

Self-host the Lato font in a neatly bundled NPM package.

a CSS selector compiler/engine

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

The modern CSS-in-JS library

Color conversion and manipulation with CSS string support

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

The modern CSS-in-JS library

Parser and generator for CSS color strings

Generating CSS using JS with considerable flexibility and extensibility, at both server side and client side.

Self-host the IBM Plex Mono font in a neatly bundled NPM package.

Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website

Blazing fast zero-runtime CSS in JS library

Self-host the Public Sans font in a neatly bundled NPM package.

Parses and compiles CSS nth-checks to highly optimized functions.

Lightweight UI components for Vue.js (v3) based on Bulma

Self-host the Fira Code font in a neatly bundled NPM package.

Reads/Writes CSS variables (CSS custom properties) in javascript property.

Self-host the Source Sans Pro font in a neatly bundled NPM package.

PostCSS plugin for CSS Modules to pass arbitrary values between your module files

Trig.js powers dynamic, CSS-driven animate-on-scroll effects using CSS variables and element position data, making AOS effortless. Create custom animations in CSS or use trig-animations.css for ready-made effects—full control or quick setup. Perfect for s

Fast CSS Selectors API Engine

A react component toolset for managing animations

css loader module for webpack

SCSS themes for @chatscope/chat-ui-kit-react library

tiny modular DOM lib for ie9+

A well-tested CSS minifier

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.

A React HOC for CSS variables

PostCSS loader for webpack

Self-host the Noto Sans font in a neatly bundled NPM package.

Self-host the JetBrains Mono font in a neatly bundled NPM package.

Convert a kebab-cased CSS property into a camelCased DOM property.

extracts CSS into separate files

Detect and tweak CSS variables at runtime.

CSS minifier with structural optimisations

CLI tool to invert css variables in bulk

A CSS Modules transform to make local scope the default

Self-host the Fira Mono font in a neatly bundled NPM package.

Convert values with PostCSS (e.g. ms -> s)

Merge longhand properties into shorthand with PostCSS.

ICSS utils for postcss ast

Optimise inline SVG with PostCSS.

A border (stroke) management system for web components using css variables (css custom properties).

Ensure CSS selectors are unique.

Generate a hex color from the given text

PostCSS plugin to import CSS files

A pure JavaScript implementation of Sass.

A modern CSS parser and stringifier with TypeScript support

Self-host the Barlow font in a neatly bundled NPM package.

Solve CSS math expressions

PostCSS for CSS-in-JS and styles in JS objects

Algorithms to help you parse CSS from an array of tokens.

Highly configurable, well-tested, JavaScript-based HTML minifier.

A recommended babel preprocessing plugin for emotion, The Next Generation of CSS-in-JS.

A simple utility for conditionally joining classNames together

Discard duplicate rules in your CSS files with PostCSS.

PostCSS plugin to reduce calc()

Add necessary or remove extra charset with PostCSS

Discard comments in your CSS files with PostCSS.

Merge Tailwind CSS classes without style conflicts

Minify gradient parameters with PostCSS.

Trim whitespace inside and around CSS rules & declarations.

Color your terminal using CSS/hex color codes

Self-host the Public Sans font in a neatly bundled NPM package.

Detect/remove browser hacks from CSS files.

Self-host the DM Sans font in a neatly bundled NPM package.

Normalize unicode-range descriptors, and can convert to wildcard ranges.

Reduce initial definitions to the actual initial value, where possible.

👑 A tiny yet powerful tool for high-performance color manipulations and conversions

Minify font declarations with PostCSS

Self-host the Montserrat font in a neatly bundled NPM package.

Discard empty rules and values with PostCSS.

Tokenize CSS

Minify colors in your CSS files with PostCSS.

PostCSS plugin to discard overridden @keyframes or @counter-style.

Ensure values are ordered consistently in your CSS.

Self-host the Nunito Sans font in a neatly bundled NPM package.

Full CSS support for JSX without compromises

Self-host the Nunito Sans font in a neatly bundled NPM package.

Normalize wrapping quotes for CSS string literals.

Color helpers to ease transformation between formats, gamut, etc

Parse CSS color values

Convert spritesheet data into CSS or CSS pre-processor data

Just create a single stylesheet...

Merge CSS rules with PostCSS.

A modular minifier, built on top of the PostCSS ecosystem.

Parse CSS inline style to JavaScript object.

Minify selectors with PostCSS.

A stylelint custom rule to check the use of scss variable on declaration.

Minify at-rule params with PostCSS

Normalize URLs with PostCSS

Self-host the Noto Sans JP font in a neatly bundled NPM package.

Determine selector specificity with postcss-selector-parser

Sorts CSS declarations fast and automatically in a certain order.

Normalize keyword values for position into length values.

An inline style parser.

Functional CSS for humans

A stylelint plugin that checks for a file header.

Blazing fast zero-runtime CSS in JS library

List of known CSS properties

A stylelint rule to disallow usage of unknown custom properties

Fault-tolerant CSS parser for PostCSS

CSS minimizer (minifier) plugin for Webpack

Blazing fast zero-runtime CSS in JS library

Self-host the Roboto Condensed font in a neatly bundled NPM package.

Self-host the Merriweather font in a neatly bundled NPM package.

Given a DOM node, return a unique CSS selector matching only that element

Self-host the Nunito font in a neatly bundled NPM package.

Webpack loader that resolves relative paths in url() statements based on the original source file

hast utility to create an element from a simple CSS selector

Self-host the DM Sans font in a neatly bundled NPM package.

Class Variance Authority 🧬

Use Custom Media Queries in CSS

Use 4 & 8 character hex color notation in CSS

Generate accessible complementary text or UI colors as Sass variables and/or CSS custom properties from your base color tokens.

Use logical properties and values in CSS

PostCSS plugin to replace overflow-wrap with word-wrap or optionally retain both declarations.

Use the gap, column-gap, and row-gap shorthand properties in CSS

Self-host the Roboto Mono font in a neatly bundled NPM package.

A utility library to convert CSS color values into an RGB array and hex code. Supports CSS color names, hex values, RGB, HSL, CSS variables and modern CSS color functions such as color-mix() and color().

Self-host the Inconsolata font in a neatly bundled NPM package.

Self-host the Plus Jakarta Sans font in a neatly bundled NPM package.

A list of all CSS color keywords.

CSS for the <Component> Age. Style components your way with speed, strong typing, and flexibility.

Style elements relative to other elements in CSS

Use the :focus-visible pseudo-selector in CSS

A list of CSS features and their positions in the process of becoming implemented web standards

Use Custom Selectors in CSS

Self-host the Source Code Pro font in a neatly bundled NPM package.

Use the rebeccapurple color keyword in CSS

Self-host the Open Sans font in a neatly bundled NPM package.

The most popular front-end framework for developing responsive, mobile first projects on the web.

Convert modern CSS into something browsers understand

Use the :focus-within pseudo-selector in CSS

Style form elements when they are empty

A pseudo-class for matching elements in a selector list

Blazing fast zero-runtime CSS in JS library

Nest rules inside each other in CSS

Display resolution-dependent images using the image-set() function in CSS

Use the ic length unit

Use double-position gradients in CSS

Use a place-* shorthand for align-* and justify-* in CSS

PostCSS plugin to transform W3C font-variant properties to more compatible CSS (font-feature-settings)

Use the color() function in CSS

Use unquoted format on @font-face CSS definitions.

Compile Sass to CSS

A mighty CSS linter that helps you avoid errors and enforce conventions.

PostCSS plugin postcss-page-break to fallback `break-` properties with `page-break-` alias

Using more intuitive `>=`, `<=`, `>`, `<` instead of media queries min/max prefix.

Use sin(), cos(), tan(), acos(), atan(), and atan2() to compute trigonometric relationships

A Less loader for webpack. Compiles Less to CSS.

A Tailwind CSS plugin for creating beautiful animations.

Parses CSS inline style to JavaScript object (camelCased).

Use the :any-link pseudo-class in CSS

Strip line and/or block comments from a string. Blazing fast, and works with JavaScript, Sass, CSS, Less.js, and a number of other languages.

The Spectrum CSS tokens package

Self-host the JetBrains Mono font in a neatly bundled NPM package.

Enable support for case insensitive attribute matching in selectors

Generic theme to add styles to all SUI components

Use space and slash separated color notation in CSS

Self-host the Playfair Display font in a neatly bundled NPM package.

A webpack plugin to provide Dynamic Theme for Ant Design

Use lab() and lch() color functions in CSS

Use the :dir pseudo-class in CSS

Self-host the Mulish font in a neatly bundled NPM package.

Use the overflow shorthand in CSS

PostCSS plugin This project tries to fix all of flexbug's issues

Use light and dark color schemes in all browsers

Self-host the Manrope font in a neatly bundled NPM package.

Self-host the Material Icons Outlined font in a neatly bundled NPM package.

Self-host the Plus Jakarta Sans font in a neatly bundled NPM package.

Use oklab() and oklch() color functions in CSS

Self-host the Raleway font in a neatly bundled NPM package.

Self-host the Nunito font in a neatly bundled NPM package.

PostCSS plugin to transform percentage-based opacity values to more compatible floating-point values.

Angular 7 dynamic themes made simple with native css variables

Self-host the Oswald font in a neatly bundled NPM package.

A CSS property value parser for use with PostCSS

Design-tokens for Nav designsystem

Use hwb() color functions in CSS

Use round, rem and mod functions in CSS

Hyphenates a camelcased CSS property name

Use cascade layers in CSS

A sheetify transform to add support for W3C-style CSS variables syntax

Parse CSS media query lists.

PostCSS plugin to transform clamp() to combination of min/max

PostCSS plugin to iterate through values

Blazing fast zero-runtime CSS in JS library

Use nested calc() expressions in CSS

Self-host the Roboto font in a neatly bundled NPM package.

Self-host the Rubik font in a neatly bundled NPM package.

Provides some base functions needed by a css-select adapter so that you don't have to implement the whole thing.

Self-host the Kanit font in a neatly bundled NPM package.

List of standard and browser specific CSS functions.

Use two values display syntax for inner and outer display types.

PostCSS plugin to fallback initial keyword.

Self-host the Roboto Flex font in a neatly bundled NPM package.

CSS parser / stringifier

Self-host the Mulish font in a neatly bundled NPM package.

Use text-decoration in it's shorthand form in CSS

Self-host the Libre Baskerville font in a neatly bundled NPM package.

Self-host the Space Mono font in a neatly bundled NPM package.

css color parsing, manupulation and conversion