<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <style>
.point{
color: red;
font-size: 19px;
}
</style>
</head>
<body>
<h1>jQuery toggleClass() Method</h1>
<p>This is paragraph</p>
<button>toggleClass</button>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").toggleClass("point");
});
});
</script> </body>
</html>