<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
#outer {
width: 400px;
height: 150px;
background: #cbb2d1;
margin: 50px auto 0 auto;
overflow: auto;
}
#inner {
background: #fff;
margin: 50px;
padding: 10px;
}
</style>
</head>
<body>
<div id="outer">
<div id="inner">
Hello world!
</div>
</div>
</body>
</html>