HTML <label> class Attribute

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



A class attribute styling a <label> element.

  .label {color:#4238ca; font-weight:bold;}

  <label for="firstname" class="label">First name</label> &nbsp;
  <input type="text" id="firstname" name="firstname">

Using class

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

Multiple classnames are separated by a space.

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


<label class="classnames">



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

More Examples

A class attribute styling a <label> element.
Clicking the button toggles a classname that changes the text color.


  .indigo {color:#4238ca; font-weight:bold;}
  .teal {color:#258e94;}

  <label for="firstname" id="mylabel" class="indigo">First Name</label> &nbsp;
  <input type="text" id="firstname" name="firstname">

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

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

Code explanation

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

The class attribute in <label> assigns one class.

Repeatedly clicking the button toggles another class, changing the boldness of the <label>.

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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