- < header > - Defines a header for a document or a section
- < nav > - Defines a set of navigation links
- < section > - Defines a section in a document
- < article > - Defines an independent, self-contained content
- < aside > - Defines content aside from the content (like a sidebar)
- < footer > - Defines a footer for a document or a section
- < details > - Defines additional details that the user can open and close on demand
- < summary > - Defines a heading for the < details > element
There are four different techniques to create multicolumn layouts. Each technique has its pros and cons:
- CSS framework
- CSS float property
- CSS flexbox
- CSS grid

