/* Tableless layout  */

body {
background: #ddd;
margin: 40px 0;
text-align: center;
}
#container {
width: 700px;
margin: 0 auto;
}
#header {
background: #fff;
width: 100%;
height: 30px;
padding-top: 15px;
}
#content {
background: #aaa;
float: left;
width: 400px;
text-align: left;
}
#leftbar {
background: #ccc;
float: left;
width: 150px;
}
#rightbar {
background: #ccc;
float: right;
width: 150px;
}