Experimental. Don't use.

CEM Research Project icon set — 134 single-color SVG icons with React + Blade components, accessibility, and CSS state hooks.

EveryState CSS: State-driven CSS with runtime reactive styling, design tokens, typed validation, and relational constraints

Official CSS state management library for Accent.js

Trigger UI / CSS state changes using configuration rather than complex code.

Better hover, active and focus states than CSS pseudo-classes, and a callback when the interactive state changes.

Enables a color picker input next to css colors

Zero dependency React transition state machine.

Bundler agnostic HMR utils for Svelte 3

This is an internal utility, not intended for public usage.

Utilities and variants for styling Radix state

A CSS parser, transformer, and minifier written in Rust

Core Inquirer prompt API

ProseMirror editor state

Open Web data by the Mozilla Developer Network

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

a CSS selector compiler/engine

State-Driven Styling in JavaScript

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

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