IMPORTANT NOTE: Read the NEW Bootstrap 4 “How to use SCSS Mixins” post here. After over 9-months of work, Bootstrap 3 is here. It introduces a new way of thinking on how the responsive grid works, when it is best applied, and how the styled elements within the breakpoints work as well. About a month ago, I decided I wanted to jump onboard right away, so I built a new blog theme with it (the one yo