HTML <code> class Attribute

The class attribute assigns one or more classnames to the <code> tag.

Classnames are defined in a stylesheet or in a local <style> element.

Classes, i.e. classnames, are used to style the code element.



A class attribute styling a <code> element.

In JavaScript the alert() method displays an alert box.

  .code-underline {text-decoration: underline;}

  In JavaScript the 
  <code class="code-underline">alert()</code> 
  method displays an alert box.

Using class

Classes (i.e. classnames) are used for styling the code element.

Multiple classnames are separated by a space.

JavaScript uses classes to access elements by classname.

Tip:  class is a global attribute that can be applied to any HTML element.


<code class="classnames" >



Value Description
classnames One or more space-separated class names.

More Examples

A class attribute styling a <code> element. Clicking the button toggles a classname that changes the underlining.

In JavaScript the alert() method displays an alert box.

  .code-underline { text-decoration: underline; }
  .lucida { font-family: "Lucida Console", Monaco, monospace; }
  .no-underline { text-decoration: none; }

  In JavaScript the 
  <code class="code-underline lucida" id="mycode">alert()</code> 
  method displays an alert box.

<button onclick="toggle();">Toggle class</button>

  let toggle = () => {
    let element = document.getElementById("mycode");

Code explanation

Three CSS classes are defined in the <style> element.

The class attribute in <code> assigns two of those classnames.

Repeatedly clicking the button toggles another class, turning the underline on and off.

Browser support

Here is when class support started for each browser:

1.0 Sep 2008
1.0 Sep 2002
1.0 Aug 1995
1.0 Jan 2006
1.0 Jan 2003

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Last updated on Sep 30, 2023