Html elements babbr, and iframe

b element Displays the text of the element as boldface text, abbr element Specifies that a string is an abbreviation for a longer word or phrase, iframe element Defines an inline frame (ie a frame embedded in a document). These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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b b and abbr, babbr, and iframe

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