Html elements span, audio, and base

span element Span element used to surround content blocks for formatting, audio element The audio element is used to embed sound content in an HTML or XHTML document, 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 audio, span, audio, and base

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