.r-star {
	position:relative;
	overflow:hidden;
	padding:10px 0;
}

.r-star .cn {
	position:absolute;
	width:20px;
	height:20px;
	left:-10px;
	top:-10px;
	background:url(/img/r-star.png);
}

.r-star .cn.tr, .r-star .cn.br {
	margin-left:100%;
}

.r-star .cn.bl, .r-star .cn.br {
	top:auto;
}