Html elements ahgroup, and audio

a element Specifies either a hyperlink or a target for a hyperlink, hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section, audio element The audio element is used to embed sound content in an HTML or XHTML document. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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a a and hgroup, ahgroup, and audio

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