.mark{width:100%;height:100%;background-color:#000;opacity:.2;position:fixed;left:0;right:0;top:0;bottom:0;z-index:999}.tip_popup{position:fixed;left:30%;top:10%;z-index:1000;background-color:#fff}.openning_tip{text-align:center;font-size:14px;color:#333;padding:20px 0}.openning_sure{text-align:center;padding:10px 0}.openning_sure span{font-size:14px;color:#fff;background-color:#2d8cf0;padding:5px 15px;border-radius:4px}