Html elements iframe, details, and sup

iframe element Defines an inline frame (ie a frame embedded in a document), details element The HTML details element (<details>) is used as a disclosure widget from which the user the retrieve additional information, sup element Specifies that the enclosed text should be rendered in the browser as superscript. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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iframe iframe and details, iframe, details, and sup

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