Sections are horizontal panels that you can add to your landing page. By adding them you can control your page’s height.
Sections make designing your landing page easier. With sections you can create anchor links on your landing page, which you can use to bring site visitors from a link to a specific section.
From the Ribbon toolbar you can set your section's height, as well as setting a top and bottom offset to the section. You can also customize sections by setting different background effects.