Clean CSS Layout without HTML Table

body {
 padding: 0px;
 margin: 0px;
}

#header {
 position: absolute;
 top: 10px;
 left: 10px;
 right: 10px;
 height: 100px;
 overflow: hidden;
 background-color: yellow;
}

#side {
 position: absolute;
 top: 120px;
 left: 10px;
 bottom: 10px;
 width: 130px;
 background-color: orange;
}

#main {
 position: absolute;
 top: 120px;
 left: 150px;
 bottom: 10px;
 right: 10px;
 background-color: lightgrey;
}