The <header> element represents a container for introductory content or a set of navigational links.
A <header> element typically contains:
- one or more heading elements (<h1> - <h6>)
- logo or icon
- authorship information
Body
The <body> tag defines the document's body.
The <body> element contains all the contents of an HTML document, such as text, hyperlinks, images, tables, lists, etc.
sidebar
The <footer> tag defines a footer for a document or section.
A <footer> element should contain information about its containing element.
A <footer> element typically contains:
- authorship information
- copyright information
- contact information
- sitemap
- back to top links
- related documents
The <aside> tag defines some content aside from the content it is placed in.
The aside content should be related to the surrounding content.
