Sidebars are great for related or accompanying information to the main content.
Sidebars are designed to give background colour that stretches the full width of the browser window. When in mobile responsive view, the sidebar drops below the content and becomes full width.
Sidebars can be designed to be on the left or the right by changing the column order and the class .sidebar-right or .sidebar-left
Sidebars can be offset slightly to give a visually interesting ‘floating’ effect to cards.