This tutorial is the second in the series Combining Bootstrap and Underscores to Create Your Own Theme Framework. In this tutorial, we are going to introduce you to one of the main components of the framework: Underscores (_s). Underscores (_s) was designed to serve as a base/starter theme by the WordPress.com Theme Team—the people responsible for the design and development themes that ship with WordPress
Originally posted here:
Combining Underscores With Bootstrap to Create a Theme Framework: Introducing Underscores