Html elements sub, script, and hgroup

sub element Specifies that the enclosed text should be rendered in the browser as subscript, script element Specifies that the enclosed content is a client-side script, 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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sub sub and script, sub, script, and hgroup

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