How do we do variable formatting using the `tag in HTML?`

HTML Web Development Front End Technology

We use <var> tag to define a variable in programming or in a mathematical expression. It is also used to format text in a document. The content inside this tag is typically displayed in italic font.

Syntax

<var>Variable…</var>

Example 1

Following is an example to perform variable formatting using the tag in HTML −


<!DOCTYPE html>
<html>
<head>
   <meta charset="UTF-8">
   <meta name="description" content="meta tag in the web document">
   <meta name="keywords" content="HTML,CSS">
   <meta name="author" content="lokesh">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
   <p>
      <var>a</var> = float(input('Enter a value: ')) <br>
      <var>b </var>= float(input('Enter b value: ')) <br>
      <var>c </var>= float(input('Enter c value: ')) <br>
      # calculate the semi-perimeter <br>
      <var>s </var>= (<var>a</var> +<var> b</var> +<var> c</var>) / 2 <br>
      # calculate the area <br>
      area = (<var>s</var>*(<var>s</var>-<var>a</var>)*(<var>s</var>-<var>b</var>)*(<var>s</var>-<var>c</var>)) ** 0.5 <br>
      print('The area of the triangle is %0.2<var>f</var>' %area)
   </p>
</body>
</html>

Example 2

You can try to run the following code to do variable formatting using the <var> tag in HTML −


<!DOCTYPE html>
<html>
<head>
   <title>HTML var Tag</title>
</head>
<body>
   <p>The equations: <var>2x</var> - <var>3z
      </var> = <var>5y</var> + 2 and
      <var>2x</var> + <var>5z</var> = <var>2y</var> + 7
   </p>
</body>
</html>

Example 3

We can override the font style using style sheet. The example code is as follows −


<!DOCTYPE html>
<html>
<head>
   <meta charset="UTF-8">
   <meta name="description" content="meta tag in the web document">
   <meta name="keywords" content="HTML,CSS">
   <meta name="author" content="lokesh">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <style>
      var{
         font-family: cursive;
      }
   </style>
</head>
<body>
   <p>
      <var>a</var> = float(input('Enter a value: ')) <br>
      <var>b </var>= float(input('Enter b value: ')) <br>
      <var>c </var>= float(input('Enter c value: ')) <br>
      # calculate the semi-perimeter <br>
      <var>s </var>= (<var>a</var> +<var> b</var> +<var> c</var>) / 2 <br>
      # calculate the area <br>
      area = (<var>s</var>*(<var>s</var>-<var>a</var>)*(<var>s</var>-<var>b</var>)*(<var>s</var>-<var>c</var>)) ** 0.5 <br>
      print('The area of the triangle is %0.2<var>f</var>' %area)
   </p>
</body>
</html>

Lokesh Badavath

Updated on: 19-Oct-2022

913 Views

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How do we do variable formatting using the tag in HTML?