In Line Inline elements are used to mark up a piece of text as being special. They are always included within block elements.
Most inline elements are very similar, and have few attributes.
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.