#box1 {
background-color: #ac77ec;
margin: 10px;
padding: 10px;
height: 200px;
width: 200px;
float: left;
}

#box2 {
background-color: #ff6666;
margin: 10px;
padding: 10px;
height: 200px;
width: 200px;
float: left;
}

#box3 {
background-color: #66cc66;
margin: 10px;
padding: 10px;
height: 200px;
width: 440px;
clear: left;
}