A design structure is defined as the 'Frame of the Page'.
This means Everything Surrounding the main Bar of the body is part of The design Structure:
- The Header
- The Footer
- The Side Columns (In two/three columned website layouts)
- Page Width
- Number of side Columns
- Default Fonts
You can add unlimited Design Structures to your website.
Each Page can be assigned a different design structure or the same structure.
Having the same design structures for a few pages means the same properties for that specific design structure will appear in all the pages that follow it. The main benefit is to allow you to change the surrounding design of a set of pages at once (Without changing each page one by one).
Some benefits of having different design structures include creating LANDING PAGES within your website that have a completely different design to the other sites inner pages. By having multiple design structures you may even have a different design for each page.