Css module of single purpose classes for skins
A small, fast and crossbrowser custom scrollbar with native system scroll mechanic.
NativeScript Core Theme
Dial knob UI component for the web, based on pure HTML/SVG tags.
Highly customizable checkboxes and radio buttons (jQuery & Zepto)
EPAM UUI Components
iCheck components built with React. Highly customizable checkboxes and radio buttons
A javascript library that lets you add stories EVERYWHERE.
TinyMCE Oxide skins
Sidebar navigation style guide (CSS and Sass)
Reusable ShipAny pricing components and adapters.
Liferay's fork of CKEditor
A CSS parser, transformer, and minifier written in Rust
Open Web data by the Mozilla Developer Network
PostCSS plugin for CSS Modules to pass arbitrary values between your module files
a CSS selector compiler/engine
Algorithms to help you parse CSS from an array of tokens.
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
css loader module for webpack
Solve CSS math expressions
Tokenize CSS
extracts CSS into separate files
A well-tested CSS minifier
Parse CSS color values
Skins, CSS, SCSS, etc
Chameleon is a theming/skinning extension for Compass. Chameleon allows you to define themes and output themed CSS properties for each theme.