ExpressionEngine is an open source, flexible, and feature-rich content management platform that empowers hundreds of thousands of individuals and organizations around the world to easily manage their web site.
GitHub is a place to share code with friends, co-workers, classmates, and complete strangers, helping individuals and teams to write faster, better code.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.