body{margin: 0px;
	background-image: url(http://www.1css.net/img/box2.gif);
	}
.c1{
	margin: 20px;
	padding: 10px;
	background-color: #dddddd;
}
.c2{
	margin: 10px 50px;
	padding: 5px 10px;
	background-color: #ffdddd;
}
.c3{
	margin: 10px 30px 50px;
	padding: 5px 10px 20px;
	background-color: #ddffdd;
}
.c4{
	margin: 0px 10px 30px 50px;
	padding: 5px 10px 20px 30px;
	background-color: #ddddff;
}