Structure
The page skeleton and how blocks sit in space.
Section
Layout
Sidebar layout
A side column next to the main content that stacks on narrow screens.
Sticky header
A header that stays in view as the page scrolls.
Resizable panes
Panes the reader can drag to resize.
Divider
Scroll area
A region that scrolls on its own and can be reached by keyboard.
3D
Scenes, nodes and faces laid out in three dimensions with CSS transforms.