By default, all of your pages reference your 'main' layout - this ensures the same scaffolding structure for each of your sections/pages
The 'main' layout calls divides your page into the following screen areas:
- header calls the 'header' section
- breadcrumb calls the 'breadcrumb' section
- footer calls the 'footer' section
- cookie bar calls the 'cookie-bar' section
- content points back to the page (twig file) from which layout was called.
The main layout uses Aero Sections
See our section on sections for more information