The HTML Variable element (<var>) 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.
| Content categories | Flow content, phrasing content, palpable content. |
|---|---|
| Permitted content | Phrasing content |
| Tag omission | Both start and end tags are required |
| Permitted parents | Any element that accepts phrasing content. |
| Permitted ARIA roles | Any |
| DOM Interface | HTMLElement |
This element only includes the global attributes
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 elementIf 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:
Most browsers apply font-style to "italic" when rendering <var>. This can be overridden in CSS, like this:
var {
font: bold 15px "Courier", "Courier New", monospace;
} Here's a simple example, using <var> to denote variable names in a mathematical equation.
<p>A simple equation: <var>x</var> = <var>y</var> + 2 </p>
The output:
Using CSS, you can override the default style for the <var> element. In this example, variable names are rendered using bold Courier if it's available, otherwise it falls back to the default monospace font.
var {
font: bold 15px "Courier", "Courier New", monospace;
} <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.
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of '<var>' in that specification. | Living Standard | |
| HTML5 The definition of '<var>' in that specification. | Recommendation |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | Yes | 1 | Yes | Yes | Yes |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 4 | Yes | Yes | Yes |
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https://developer.mozilla.org/en-US/docs/Web/HTML/Element/var