<var>: The Variable element
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The <var> HTML element represents the name of a variable in a mathematical expression or a programming context. It's typically presented using an italicized version of the current typeface, although that behavior is browser-dependent.
Try it
<p>
The volume of a box is <var>l</var> × <var>w</var> × <var>h</var>, where
<var>l</var> represents the length, <var>w</var> the width and
<var>h</var> the height of the box.
</p>
var {
font-weight: bold;
}
Attributes
This element only includes the global attributes.
Usage notes
>Related elements
Other elements that are used in contexts in which <var> is commonly used include:
<code>: The HTML Code element<kbd>: The HTML Keyboard input element<samp>: The HTML Sample Output element
If you encounter code that is mistakenly using <var> for style purposes rather than semantic purposes, you should either use a <span> with appropriate CSS or, an appropriate semantic element among the following:
Default style
Most browsers apply font-style to "italic" when rendering <var>. This can be overridden in CSS, like this:
var {
font-style: normal;
}
Examples
>Basic example
Here's a basic example, using <var> to denote variable names in a mathematical equation.
<p>An algebraic equation: <var>x</var> = <var>y</var> + 2</p>
Result
Overriding the default style
Using CSS, you can override the default style for the <var> element. In this example, variable names are rendered in bold, using Courier if it's available, otherwise it falls back to the default monospace font.
CSS
var {
font:
bold 15px "Courier",
"Courier New",
monospace;
}
HTML
<p>
The variables <var>minSpeed</var> and <var>maxSpeed</var> control the minimum
and maximum speed of the apparatus in revolutions per minute (RPM).
</p>
This HTML uses <var> to enclose the names of two variables.
Result
Technical summary
| Content categories | Flow content, phrasing content, palpable content. |
|---|---|
| Permitted content | Phrasing content. |
| Tag omission | None, both the starting and ending tag are mandatory. |
| Permitted parents | Any element that accepts phrasing content. |
| Implicit ARIA role | No corresponding role |
| Permitted ARIA roles | Any |
| DOM interface | HTMLElement |
Specifications
| Specification |
|---|
| HTML> # the-var-element> |
Browser compatibility
Loading…