The most commonly used inline elements are those used to mark up phrases. This element may only contain inline elements and text. EM is used to emphasize a phrase. CITE is used to indicate a citation or reference, such as the title of a text being referred to. DFN is used to mark the defining instance of a term, the first time you mention it in the text.
CODE is used to indicate that a fragment of text is computer code.
SAMP is used to indicate that a fragment of text is sample output from a computer program. KBD is used to indicate text entered by a user when using a computer. VAR is used to mark up a variable in a computer program. ABBR is used to indicate an abbreviation. To launch Acme Computer Corp. 's M.O.R.O.N.S. manager, enter morons at the command prompt.