The <var> tag is used to mark a variable.
It's used in a mathematical expressions or in computer code.
By default, variables display in italic.
A <var> tag with the letter r representing the radius.
π<var>r</var>^2 is the area of a circle.
var = variable
The <var> elements a, b, and c are part of Pythagora’s theorem.
The Pythagorean theorem:
<var>a</var><sup>2</sup> + <var>b</var><sup>2</sup> =
<var>c</var><sup>2</sup>
The <var> element has no attributes, but it does accept global attributes.
The following are commonly used.
| Attribute | Value | Description |
|---|---|---|
| id | value | Provides the variable with a unique identifier. |
| class | classnames | Assigns one or more classnames to the variable. |
| style | CSS-values | Assigns CSS style values to the variable. |
For additional global attributes see our global attributes list.
Phrase tags highlight the meaning of a small piece of text (i.e. a phrase).
The <var> tag, which specifies a variable, is one of them. But there are several others.
A list of all HTML Phrase tags.
| Tag | Description |
|---|---|
| <em> | Indicates emphasized text |
| <strong> | Indicates important text |
| <code> | Indicates computer code |
| <samp> | Indicates sample output from a computer program |
| <kbd> | Indicates keyboard input |
| <var> | Indicates a variable |
The <var> tag is part of a group of tags
that create coding (programming) related features on web pages.
This group is referred to as the Code tag group.
Together, they allow you to create code-friendly pages.
A list of code tags.
| Element | Description |
|---|---|
| <pre> | Displays pre-formatted text in fixed-width font -- usually computer code |
| <code> | An element that is used to display computer code |
| <samp> | Displays sample output from a coumputer code |
| <output> | Displays output results of a calculation |
| <var> | Marks its content as a variable |
| <!--...--> | Marks text as comments in the source code. Not visible to users |
Here is when <var> support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
