Definition
The <var> HTML element is used to represent a variable or a placeholder within inline text. It is typically used to denote a mathematical or programming variable, or any other type of variable or placeholder in a text context.
Here’s an example of how to use the <var> element:
<p>
The formula to calculate the area of a circle is <var>A</var> =
<var>π</var> * <var>r</var><sup>2</sup>
</p>
In this example, the <var> element is used to represent variables in a mathematical formula. The variables “A,” “π” (pi), and “r” are enclosed within <var> tags to indicate that they are placeholders for values that will be substituted when using the formula.
The <var> element does not have any special styling by default, but you can apply CSS styles to it if you want to distinguish variables from regular text. For example:
<style>
var {
font-style: italic;
}
</style>
In this case, the <var> element is styled with italic font style to visually differentiate it from the surrounding text.
It’s important to note that the <var> element should be used for variables or placeholders within inline text. If you need to represent variables in a more structured or programmatic way, you might consider using other elements such as <code> or <pre> for code snippets or mathematical markup languages like MathML.