<!DOCTYPE html>

<html>
<head>
  <style type="text/css" media="screen">
    body { background-color:silver }
    
    .box {
        height: 200px;
        width: 200px;
        margin: 10px;
        padding: 5px;
        background-color: blue;
    }
  </style>
</head>
<body>
  
    <p>This is the inner frame.</p>

</body>
</html>