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Html elements h3, abbr, and base

h3 element Heading Level 3, abbr element Specifies that a string is an abbreviation for a longer word or phrase, 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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h3 h3 and abbr, h3, abbr, and base

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