#box1 {
	position:absolute;
	left:0px;
	top:100px;
	width:160px;
	height:120px;
	background-color:#f00;
	border:1px solid black;
}
#box2 {
	position:absolute;
	left:250px;
	top:100px;
	width:160px;
	height:120px;
	background-color:#88f;
	border:1px solid black;
}
#dropArea {
	position:absolute;
	left:100px;
	top:250px;
	width:320px;
	height:240px;
	background-color:#9f9;
	border:1px solid black;
}
.out {
	width:160px;
	height:120px;
	background-color:#8f8;
	border:2px solid red;
}