<html>
<head>
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
function
removeclasses()
{
$("#item").removeClass();
}
</script>
<style
type="text/css">
p.center
{
text-align:
center;
color:blue;
}
p.large
{
font-size:
200%;
}
</style>
</head>
<body>
<p
id="item" class="center large">This program i am using
two classes.</p>
<input
type="button" value="Click to remove css classes"
onclick="removeclasses()" />
</body>
</html>