<dfn> tag Prev Next HTML <dfn> tag The <dfn> element is a HTML definition tag for a term.You should also provide the definition of the term which is used in the <dfn> tag. Syntax:<parent_tag> <dfn>Defintion-term</dfn> description/explanation of the definition</p> Example <!DOCTYPE html> <html> <head> <title>Example for HTML dfn Tag</title> </head> <body> <p> <dfn>WWW</dfn> stands for World wide web where documents and other web resources are identified by URLs. </p> </body> </html> Run the Code Default CSS Values font-style: italic; How Browser will display INLINE. Difference between HTML4.01, XHTML and HTML5 HTML4 XHTML HTML5 No Difference No Difference No Difference Attributes used with <dfn> tag Attribute Description title Defines the title of the text when the user mouse over it. The title contains a text. id Describes an id for the <dfn> tag with an id name. The same id name can be referred using the '#' symbol followed by the id name in the <a> tag. Global Attributes The <dfn> tag supports Global attributes. Event Attributes The <dfn> tag supports Event attributes. Supporting Browsers Related Tags <abbr> tag. Prev Next Facebook Twitter Google-plus