ExampleFormat text in a document: <var>Variable</var> | Browser Support |
1. Definition and Usage
The <em>, <strong>, <dfn>, <code>, <samp>, <kbd>, <var>, and <cite> tags are all phrase tags. They are not deprecated, but it is possible to achieve them with CSS.
| Tag | Description |
|---|---|
| <var> | Defines a variable part of a text |
2. Differences Between HTML and XHTML
None
3. Standard Attributes
DTD indicates in which HTML 4.01/XHTML 1.0 DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
The <em>, <strong>, <dfn>, <code>, <samp>, <kbd>, <var>, and <cite> tags support the following standard attributes:
| Attribute | Value | Description | DTD |
|---|---|---|---|
| class | classname | Specifies a classname for an element | STF |
| dir | rtl ltr | Specifies the text direction for the content in an element | STF |
| id | id | Specifies a unique id for an element | STF |
| lang | language_code | Specifies a language code for the content in an element | STF |
| style | style_definition | Specifies an inline style for an element | STF |
| title | text | Specifies extra information about an element | STF |
| xml:lang | language_code | Specifies a language code for the content in an element, in XHTML documents | STF |
4. Event Attributes
The <em>, <strong>, <dfn>, <code>, <samp>, <kbd>, <var>, and <cite> tags support the following event attributes:
| Attribute | Value | Description | DTD |
|---|---|---|---|
| onclick | script | Script to be run on a mouse click | STF |
| ondblclick | script | Script to be run on a mouse double-click | STF |
| onmousedown | script | Script to be run when mouse button is pressed | STF |
| onmousemove | script | Script to be run when mouse pointer moves | STF |
| onmouseout | script | Script to be run when mouse pointer moves out of an element | STF |
| onmouseover | script | Script to be run when mouse pointer moves over an element | STF |
| onmouseup | script | Script to be run when mouse button is released | STF |
| onkeydown | script | Script to be run when a key is pressed | STF |
| onkeypress | script | Script to be run when a key is pressed and released | STF |
| onkeyup | script | Script to be run when a key is released | STF |
