Html elements keygen, h4, and ruby

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, h4 element Heading Level 4, ruby element Defines a container for Ruby Text. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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keygen keygen and h4, keygen, h4, and ruby

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