index.html
<!doctype html>
<html lang="en">
<head>
<title>BuckysRoom</title>
</head>
<body>
<div id="wrapper">
Babies have rabies. 
</div>
</body>
</html>


index.css
body{
background-color: #222222;
}
#wrapper{
background-color: white;
/* 
width: 1024px; 
margin: 5px auto;
border: 5px solid red;
*/
width: 90%;
margin: .4em auto;
border: .4em solid red;
}