Html elements noscript, sup, and base

noscript element Specifies alternative content to display if a client browser does not support scripts, sup element Specifies that the enclosed text should be rendered in the browser as superscript, base element Specifies a base URL for all of the relative URLs in the document to use. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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noscript noscript and sup, noscript, sup, and base

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