Remove the no flex-wrap fallback for Firefox.
Re-add closing </li> tags as the inline-block grid fallback is no longer being used.
Rework the layouts in order to move container elements out of individual page files.
Add a .jshintrc file and standardize the JavaScript style.
Rename custom-media back to breakpoints.
Rework the BrowserMatrix component to use flexbox with wrap.
Add information about the difference between the code samples and the source files.