HTML <var> Tag

<p>As a mathematical expression: <var>x</var> - 4 = 10</p>
<p>As a placeholder in prose: Give me <var>x</var> full buckets and I'll give you <var>x</var> empty buckets.</p>

The above example demonstrates usage of the <var> element.

The <var> element represents a variable. This could be a variable in a mathematical expression or programming context, an identifier representing a constant, a symbol identifying a physical quantity, a function parameter, or just be a term used as a placeholder in prose.