A full width theme normally consist of the header, nav, content and footer areas that have backgrounds that span the across the entire window while the inner area with the actual content of each section stays centered on the page. This help creates a visual separation between each section and to some just ascetically pleasing.
To create this effect you usually have your main container to each section as well as a wrap inside to keep its contents centered. The main container is set to 100% width and the inner wrap to the width you’d like your site to be fixed at then centered with a
#margin: 0 auto;.
The steps below will go over exactly how to create a full width genesis child theme using the sample child theme as a base. [Read more...]