HTML <a> class Attribute

The class attribute on an <a> (amchor) tag assigns one or more classnames to the link. Classes are used to style elements. Classnames are defined in a stylesheet or in a local <style> element.

Example

#

A class attribute styling an <a> element.

Microsoft
<style>
  .indigo { background-color: #eafafb; }
</style>

<a class="indigo" target="_blank"
   href="https://microsoft.com">Microsoft</a>

Using class

The class attribute assigns one or more classnames to the <a> (anchor) tag.

Multiple classnames are separated by a space.

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

JavaScript uses classes to access one or more elements by classname.

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


Syntax

<a class="classnames">

Values

#

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

More Examples

A class attribute styling an <a> element.
Clicking the button will toggle a classname that boldens the text.

Microsoft

<style>
  .indigo { background-color: #eafafb; }
  .lucida { font-family: "Lucida Console", Monaco, monospace}
  .bold { font-weight:bold; }
</style>

<a class="indigo lucida" id="mylink" target="_blank"
   href="https://microsoft.com">Microsoft</a>

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

<script>
  let toggle = () => {
    let element = document.getElementById("mylink");
    element.classList.toggle("bold");
  }
</script>

Code explanation

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

The class attribute on the <a> element assigns two of those classes.

Clicking the button toggles a third class changing the text to bold.



Browser support

Here is when class support started for each browser:

Chrome
1.0 Sep 2008
Firefox
1.0 Sep 2002
IE/Edge
1.0 Aug 1995
Opera
1.0 Jan 2006
Safari
1.0 Jan 2003

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