CSS - Layers

<div style="background-color:red;
	width:300px;
	height:100px;
	position:relative;
	top:10px;
	left:80px;
	z-index:2">
</div>
<div style="background-color:yellow;
	width:300px;
	height:100px;
	position:relative;
	top:-60px;
	left:35px;
	z-index:1;">
</div>
<div style="background-color:green;
width:300px;
	height:100px;
	position:relative;
	top:-220px;
	left:120px;
	z-index:3;">
</div>