A collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and so on. Easily apply to your own elements, modify or just use for inspiration. Available i…

Selectize is the hybrid of a textbox and <select> box. It's jQuery based, and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.

Primer is GitHub's design system. This is the CSS implementation

Official Sass port of Bootstrap 2 and 3.

CSS3 Animations with special effects

The most advanced, yet intuitive, grid system available for Sass or Stylus

A Sass library for building immutable and namespaced BEM CSS objects

A Sass or Stylus toolkit that sets type in Ems based on modular scale, vertical rhythm, and responsive ratio based headlines.

After years of inactivity, we have retired the website. Some of the content is still temporarily available on Heroku:

The Nanoc web site

[UNMAINTAINED] Type conversion functions for Sass.

Directory of Middleman extensions, templates and services

[UNMAINTAINED] All you ever wanted to deal with matrices in Sass.