​x
 
<html>
<head>
<title>CSS tutorial</title>
<style type="text/css">
div {
    margin: 40px;
    border:2px dashed #222;
}
p {
    margin-top:20px;
    margin-left:5%;
}
​
</style>
</head>
​
<body>
​
<div>
    <p>This is the content of the page. Margin top is 20px and left is 5%.<br />
    The containing box area has margins equally set to 40px.</p>
​
</div>
​
</body>
</html>