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Html elements pre, abbr, and em

pre element Specifies that the enclosed text is preformatted and that whitespace should be preserved appropriately, abbr element Specifies that a string is an abbreviation for a longer word or phrase, em element Specifies that the enclosed text should be emphasized. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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pre pre and abbr, pre, abbr, and em

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