*{margin:0px; padding:0px;  font-family:Arial, Helvetica, sans-serif;}
.head{width:100%; height:70px; background:black; position:fixed; top:0px; left:0px;z-index:999}
.head_inner{width:96%; max-width:1200px;height:100%; margin:0 auto;box-sizing:border-box; padding:5px;}
body{width:100%; height:auto;}
.head_clear{width:100%; height:70px;}
.main{width:96%; max-width:1200px;height:auto; min-height:700px; margin:0 auto;box-sizing:border-box; padding:5px;}



.footer{width:100%; height:70px;}
.load_bg {width:100%; height:100%; position:fixed; top:0px; left:0px; z-index:9999999; background:black; opacity:0.7;display:none;}
.load_main {width:400px; height:500px; position:fixed; top:50%; left:50%; 
margin-left:-200px; margin-top:-250px;box-sizing:border-box;
z-index:99999999; background:white; opacity:1;padding:15px;display:none;}
.close{width:50px; height:50px; background:red; cursor:pointer;}