.box0{
	width: 25%;
	height: 0;
	padding-bottom: 25%;
	background:#991111;
	float:left;
	border:1px solid #444;
}


.box{
	width:200px;
	height:200px;
	background:#999;
	float:left;
	border:1px solid #444;
}

.box2{
	width:200px;
	height:200px;
	background:#999;
	clear:left;
	float:left;
	border:1px solid #444;
}