<html>
<head>
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("div").empty();
});
});
</script>
</head>
<body>
<div style="height:100px;background-color:yellow">
This is some text
<p>This is a paragraph inside the div.</p>
</div>
<p>This is a paragraph outside the div.</p>
<button>Remove content of the div element</button>
</body>
</html>