Html elements iframe, menu, and hgroup

iframe element Defines an inline frame (ie a frame embedded in a document), menu element The HTML menu element (<menu>) represents an unordered list of menu choices, or commands, hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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iframe iframe and menu, iframe, menu, and hgroup

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