A modern alternative to CSS resets

Build mobile apps with simple HTML, CSS, and JavaScript components.

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The fastest way to build beautiful Electron apps using simple HTML and CSS

Create beautiful CSS3 powered animations in no time.

Low-level CSS Toolkit – the original Functional/Utility/Atomic CSS library

A best-practices CSS foundation

Mozilla's new typeface, used in Firefox OS

A bare-bones CSS reset for modern web development.

A collection of LESS mixins and variables for writing better CSS.

Use Sass-like markup in your CSS

📦 Introduction to CSS 3D transforms

Less Ruby — now at http://github.com/cowboyd/less.rb

MOVED TO https://github.com/csstyle/csstyle a modern approach for crafting beautifully maintainable stylesheets

Wirefy is a browser based responsive wireframe tool, which allows you to create functional wireframes using standard elements. Think of it as the foundation for your content to be built on. This al…

Start a responsive html5 site with postcss and browser-sync

Easy SCSS or Stylus responsive typography with vertical rhythm, modular scale, font stacks, and more.

All of the CSS3 fun, none of the prefixes!

Atom One dark UI theme

Complex math functions for Sass

A collection of CSS filter combos

Raw browser/feature support data from caniuse.com

HTML5 Audio player

An Atom theme with customizable colors

Atom One light UI theme

Atom's UI library

appearance:none styling.

A pretty sweet and pure CSS3 iOS 7 UISwitch

Bare bones boilerplate and Basscss theme

Modular scale calculator built into your CSS http://modularscale.com