Header of document text.
Header text of 'section with articles'.

Section with articles

This tag is used to split a page into sections like Introduction, Contact Information, Details, etc.

Section defines the type of content.

A section can have nested sections.

Header text of 'article in section'.

The article

The article contains independent content that does not require any other context.

Articles will contain the specific contents in that type of section.

But placing article inside of section is good practice.

Footer text of 'acticle in section'.
Footer text of 'section with articles'.
Header text of 'section with details / summary pairs'.

Section with details / summary pairs

Details can be opend and closed.

Details can have nested details.

Summary of parent Detail Parent detail text.
Summary of child Detail Child detail text.