Html elements h2, dfn, and abbr

h2 element Heading Level 2, dfn element Specifies that the enclosed text defines a term, abbr element Specifies that a string is an abbreviation for a longer word or phrase. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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h2 h2 and dfn, h2, dfn, and abbr

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