.box-163css{ width:770px; margin:0px auto;}
#result{ height:1800px; overflow:hidden; width:770px; margin:0 auto; text-align:left;}
#result li{width:350px;  height:180px; float:left; margin:0px 15px; }


#loader{ opacity:0; margin:0px auto; width:32px; height:32px;}
#btnTest{ cursor:pointer; background-color:#e1e2e5; margin:0 auto;  height:40px; line-height:40px; display:block; width:300px; text-align:center;}