GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over t...

At GitHub, we're building the text editor we've always wanted. A tool you can customize to do anything, but...

Sass is an extension of CSS3, adding nested rules, variables, mixins, selector inheritance, and more. It's ...

Bourbon is a library of pure sass mixins that are designed to be simple and easy to use. No configuration r...

JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments...

Dart is a cohesive, scalable platform for building apps that run on the web (where you can use Polymer) or ...

HTML5 is a core technology markup language of the Internet used for structuring and presenting content for ...