Html elements abbr, mark, and command

abbr element Specifies that a string is an abbreviation for a longer word or phrase, mark element The HTML Mark Element (<mark>) represents highlighted text, i, command element The command element represents a command which the user can invoke. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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abbr abbr and mark, abbr, mark, and command

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