Html elements span, sup, and base

span element Span element used to surround content blocks for formatting, 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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span span and sup, span, sup, and base

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