Slabs are used to separate logical chunks of content within a page.
They are a foundational building block of content meant to be customized for specific usages. Each instance of a slab section should have a second class of
slab-[instance] where custom styles can be applied.
Common uses of slab sections would to be include a header and custom layout of elements using the grid box layout. Custom background colors or images can also be applied to slab sections as they are full-bleed by default.