Html elements sub, embed, and keygen

sub element Specifies that the enclosed text should be rendered in the browser as subscript, embed element Defines an object, such as a multimedia file, embedded in an HTML document, 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. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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sub sub and embed, sub, embed, and keygen

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