#position{height:800px;margin-bottom:40px;}
#position a{color:#535353;}
#position span a{color:red;}
#position h1{font-size:36px;margin-top:20px;font-weight:bold;}
#position .experiment{height:700px;margin-top:50px;}
#position .experiment img.third{margin-right:0;}
#position .experiment ul li{float:left;width:382px;height:288px;margin-top:20px;margin-right:10px;border:1px solid #ccc;padding:3px;}
#position .experiment ul li div{width:382px;height:288px;overflow:hidden;position:relative;}
#position .experiment img{width:382px;height:288px;position:absolute;top:0px;left:0px;}
#position .experiment ul li:hover{cursor:pointer;border:1px solid red;}
#position .experiment img:hover{-webkit-filter:brightness(1.1);filter:brightness(1.1);}