Html elements embed, sub, and hgroup

embed element Defines an object, such as a multimedia file, embedded in an HTML document, sub element Specifies that the enclosed text should be rendered in the browser as subscript, 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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embed embed and sub, embed, sub, and hgroup

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