<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").empty();
});
});
</script>
</head>
<body>
<div id="div1" style="height:100px;width:300px;border:1px solid black;background-color:green;">
Hi I am Pradeep.
<p>My friends call me as Sagar.</p>
<p>My pet name is Sunny.</p>
</div>
<br>
<button>Make box as Empty</button>