Page Grid
An initiative to provide page layouts. This basically provides the mian grid to fit different page level elements like menus, logo and footer elements. This also provides content level grid for different one column, two column, right sidebar content layouts.
Base layout - No Column
A base layout that provides the grid for different page elements. This is a "no column" content layout which means it does not provide any kind of column for content and page content will use the max-width available without any margin or padding. This template will be used as a base for the other more complex content layout templates.
One Column Layout
Similar to base layout but provides a sort of one column grid to the page content. This basically adds our default content padding to page content.
Two Column Layout
Adds a two column layout for page content.
Right sidebar layout
A slightly modifier two column layout that turns the right column into a right sidebar.