<!DOCTYPE html>
<html lang="en">
<head>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<meta charset="utf-8">
<title>How to remove class in jQuery</title>
<style>
.container {
width: 100%;
border: 4px solid green;
padding: 20px;
background-color: orange;
}
</style>
</head>
<body>
<div class="container">
<h3>jQuery Tutorial</h3>
</div>
<br>
<button type="button">Remove Class</button>
<script>
$(document).ready(function() {
$("button").click(function() {
$("div").removeClass("container");
});
});
</script>
</body>
</html>