The <dfn> tag is a phrase tag. It defines a definition term.
The HTML dfn tag contains a term which is described by the paragraph where it is placed. It is useful to markup a term in its own description.
Browsers may render the text inside this element differently, usually in italic font.
Tip: This tag is not deprecated, but it is possible to achieve richer effect with CSS.
Differences Between HTML 4.01 and HTML5:
The phrase below describes what a "Cascading Style Sheet file" is.
|A <dfn>Cascading Style Sheet file</dfn> is a document with presentational attributes grouped in classes.||A Cascading Style Sheet file is a document with presentational attributes grouped in classes.|
|class||Document wide identifier|
|dir||Specifies the direction of the text|
|id||Document wide identifier|
|title||Specifies a title to associate with the element.|
|style||Helps to include inline casecadubf style sheet.|
|lang||Sets the language code.|
|onclick||Script runs when a mouse click|
|ondblclick||Script runs when a mouse double-click|
|onmousedown||Script runs when mouse button is pressed|
|onmouseup||Script runs when mouse button is released|
|onmouseover||Script runs when mouse pointer moves over an element|
|onmousemove||Script runs when mouse pointer moves|
|onmouseout||Script runs when mouse pointer moves out of an element|
|onkeypress||Script runs when key is pressed and released|
|onkeydown||Script runs when key is pressed|
|onkeyup||Script runs when key is released|