Head container
Expands to the full browser width. Usually contains the top level navigation.
Top container
Fitted to the page width.
Column container
Can be 2 to 10 units wide, controlled with a template property. Optional.
Column container
Can be 2 to 10 units wide, controlled with a template property. Optional.
Bottom container
Fitted to the page width. Optional.
Foot container
Expands to the full browser width. Usually contains a sticky footer.