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Html elements nav, keygen, and a

nav element The HTML Navigation Element (<nav>) represents a section of a page that links to other pages or to parts within the page: a section with navigation links, keygen element The HTML keygen element exists to facilitate generation of key material, and submission of the public key as part of an HTML form, a element Specifies either a hyperlink or a target for a hyperlink. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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