html,body{height:100%}
*{margin:0;padding:0}
.DB_tab25{position:relative;width:100%px;height:422px}

.DB_tab25 .DB_imgSet{position:relative;width:100%;height:422px;overflow:hidden;}
.DB_tab25 .DB_imgSet li{float:left;width:100%;height:422px;overflow:hidden;}

.DB_tab25 .DB_prevBtn{position:absolute;top:50%;margin-top:-50px;cursor:pointer;left:30px}
.DB_tab25 .DB_nextBtn{position:absolute;top:50%;margin-top:-50px;cursor:pointer;right:30px}

.DB_tab25 .DB_btnSet{position:absolute;bottom:20px;width:100%;text-align:center;font-size:0}
.DB_tab25 .DB_btnSet li{display:inline;cursor:pointer;margin-right:5px}