.tan_model{z-index:9999;background-color:#00000080;width:100%;height:100%;position:fixed;top:0;left:0}.tan_model .tan_img{width:500px;height:280px;top:50%}.tan_model .tan_close,.tan_model .tan_img{z-index:10001;border-radius:8px;position:absolute;left:50%;transform:translate(-50%,-50%)}.tan_model .tan_close{cursor:pointer;width:30px;height:30px;top:70%}