#position{position:relative;overflow: hidden;}
#position h1{font-size:36px;margin-top:20px;font-weight:bold;margin-bottom: 60px;}
#position dl{margin-right:17px;float:left;}
#position dl dt{width:218px;height:168px;padding:3px;border:1px solid #ccc;}
#position dl dt:hover{border-color:red;}
#position dl:hover dd a{color:red;}
#position dl dt a{width:218px;height:168px;overflow:hidden;position:relative;display:block;}
#position dl dt img{width:218px;height:168px;position:absolute;top:0;left:0;}
#position dl.right_dl{margin-right:0;}
#position dl dd{text-align: center;font-size: 15px;font-weight:bold;color:#535353;line-height:80px;}
#product_nav{height:60px;background:black;margin-bottom:40px;}
#product_nav ul li{float:left;width:133.3px;}
#product_nav ul li a{display:block;width:133.3px;height:60px;text-align: center;color:white;line-height:60px;font-size:16px;}
#product_nav ul li a:hover{color:red;}