Html elements br, hgroup, and details

br element Specifies a hard line break in the text, hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section, details element The HTML details element (<details>) is used as a disclosure widget from which the user the retrieve additional information. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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br br and hgroup, br, hgroup, and details

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