The HTML class attribute is used to specify a class for an HTML element.
Multiple HTML elements can share the same class.
The class attribute is often used to point to a class name in a style sheet. It can also be used by a JavaScript to access and manipulate elements with the specific class name.
In the following example, we have three <div> elements with a class attribute with the value of "city".
All of the three <div> elements will be styled equally according to the .city style definition in the head section:
<!DOCTYPE html>
<html>
<head>
<style>
.city {
background-color: black;
color: white;
border: 2px solid black;
margin: 2px;
padding: 2px;
}
</style>
</head>
<body>
<div class="city">
<h2>London</h2>
<p>London is the capital of England.</p>
</div>
<div class="city">
<h2>Paris</h2>
<p>Paris is the capital of France.</p>
</div>
<div class="city">
<h2>Tokyo</h2>
<p>Tokyo is the capital of Japan.</p>
</div>
</body>
</html>London
London is the capital of England.
Paris
Paris is the capital of France.
Tokyo
Tokyo is the capital of Japan.