body {
	margin: 0px;
}
div {
	padding: 5px;
	position: absolute;
	width: 150px;
	height: 150px;
	color: #ffffff;
	font: 24px Impact;
}
#base {
	top: 50px;
	left: 50px;
	z-index: 2;
	background-color: #0000ff;
}
#kage {
	top: 60px;
	left: 60px;
	z-index: 1;
	background-color: #808080;
}