*{ margin:0px; padding:0px;}
body 
{
    line-height:1.5;
    font-family:微软雅黑;
}
a{ text-decoration:none;}
ul,li{ list-style:none; }
img{ max-width:100%; vertical-align:middle; }
#demo{ overflow: hidden; height: 600px; width: 485px; margin:0 auto;  }
#demo ul{ margin:15px 0px 10px 0px; overflow:hidden; }
#demo ul li{
	width:232px; 
	float:left;
	text-align:center;
	margin-left:4px;
	margin-right:4px;
	margin-top: 0px;
	margin-bottom: 8px;
	border: 1px solid #ededed;
}
#demo ul li img{ width:100%; }
#demo ul li a{ color:#000; font-size:14px; line-height:30px; display:block;}