HTML <legend> class Attribute

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

Example

#

A class attribute styling a <legend> element.

Customer Information



<style>
  .cust-legend {text-transform: uppercase; background-color:aliceblue; 
                border:1px solid navy;
  }
</style>

<form action="/tutorial/action.html">
  <fieldset>
    <legend class="cust-legend">Customer Information</legend>

    <input type="text" placeholder="First name" name="firstname"><br /><br />
    <input type="text" placeholder="Last name" name="lastname"><br /><br />
  
    <input type="submit" value="Submit" />
  </fieldset>
</form>

Using class

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

Multiple classnames are separated by a space.

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

<legend class="classnames">

Values

#

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

More Examples

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

Customer Information



<style>
  .customer-legend { background-color: lavender; border: 1px solid steelblue; }
  .bg-turquoise { background-color: paleturquoise; }
</style>

<form action="/tutorial/action.html">
  <fieldset>
    <legend id="mylegend" class="customer-legend">Customer Information</legend>

    <input type="text" placeholder="First name" name="firstname"><br /><br />
    <input type="text" placeholder="Last name" name="lastname"><br /><br />
  
    <input type="submit" value="Submit" />
  </fieldset>
</form>

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

<script>
  let toggle = () => {
    let element = document.getElementById("mylegend");
    element.classList.toggle("bg-turquoise");
  }
</script>

Code explanation

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

The class attribute in <legend> assigns two of those class.

Repeatedly clicking the button toggles another class, transforming the letter casing of the legend.


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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