Layouts are common page composition patterns that offer ways of structuring components and content.
There are then 3 standard page layouts that can be used to enclose your grid:
A nsw-container keeps a container width of 1200px and the nsw-page-layout acts as a wrapper to align the content's spacing.
Displays main content area the full width of the container.
Displays a left hand sidebar that is visible on 992px+ viewports, with a main content area that is always visible. (Recommended for side navigation).
Displays a right hand sidebar that stacks on 0 - 991px viewports, with main content area that is always visible.