ul.per4{width:100%;padding:0;margin:0;}
ul.per4 li{width:24%;height:180px;float:left;padding:0;margin:80px 1% 0 0;background:#ffffff;text-align:center;line-height:120%;}
ul.per4 li:nth-child(4){margin:80px 0 0 0;}
ul.per4 li span{width: 120px;height: 120px;
	background: #ffffff;
	border-radius: 70px;
	-moz-border-radius: 70px;
	-webkit-border-radius: 70px;
	padding: 10px 10px 10px;
	display: inline-block;
	text-align: center;
	margin-top:-50px;
	border:solid 2px #999999;
}
ul.per4 li span img{width:100%;margin:0 auto;}
ul.per4 li h3{font-size:16px;font-weight:bold;margin:10px 0 5px;padding:0 20px;}
ul.per4 li p{font-size:14px;margin:0;padding:0 20px 20px;}
ul.per4 li a h3{color:#3399ff;}
ul.per4 li a:hover{text-decoration:underline;opacity:0.6;}
@media screen and (max-width:768px){
	ul.per4{margin:0;}
	ul.per4 li{width:48%;height:200px;float:left;padding:0;margin:80px 4% 0 0;background:#ffffff;text-align:center;line-height:120%;}
	ul.per4 li:nth-child(even){margin:80px 0 0 0;}
}