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You want to define your document structure with the new header, footer, nav, aside,
section, and article elements.
Examine your content and document structure to determine which of the new elements work with your page:
headerIs used to contain the headline(s) for a page and/or section. It can also contain
supplemental information such as logos and navigational
aids.
footerContains information about a page and/or section, such as who wrote it, links to
related information, and copyright statements.
navContains the major navigation links for
a page and, while not a requirement, is often contained by
header.