.start_prize_mask{z-index:100;position:fixed;margin-top:200px;margin-left:380px;cursor:pointer}.start_prize_mask_mask{z-index:100;position:absolute;background-color:#000;opacity:.5}.start_prize_mask_close{text-align:center;line-height:37px;z-index:101;width:37px;height:37px;cursor:pointer;position:fixed;margin-top:200px}