div.maskBan{background:rgba(0, 0, 0, 0.62); display:none; position:fixed; top:0; left:0;width:100%; height:100%; z-index:999; border:none;}
div.maskBan div{display:block; position:relative; margin:100px auto; min-width:500px; height:500px; overflow:visible;}
p.closeBan{position:absolute; right:100px; top:-30px; color:#333; cursor:pointer; z-index:999; padding:20px; background:#FFF; opacity:0.7; border-radius: 10px; font-size: 16px;}