The class attribute assigns one or more classnames to the <legend> tag.
Classnames are defined in a stylesheet or in a local <style> element.
Classes, i.e. classnames, are used to style elements.
A class attribute styling a <legend> element.
<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>
Classes (i.e. classnames) are used for styling the legend 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.
<legend class="classnames">
| Value | Description |
|---|---|
| classnames | One or more space-separated class names. |
A class attribute styling a <legend> element.
Clicking the button toggles a classname that changes the background color.
<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>
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.
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 |
Back to <legend>
