#flashs{ position:relative;width:980px; height:320px;margin:0 auto; overflow:hidden;text-align:center;}
#flashs .bgitem{  z-index:1;position:absolute; top:0; }
#flashs .btn{ position:absolute; z-index:7; bottom:25px; left:45%; margin-right:-450px; padding:5px 6px;}
#flashs .btn span{ color:#07a939;  background:#fff; border:1px solid #07a939; cursor: pointer;display: inline-block;margin-left: 5px;padding:2px 6px;}
#flashs .btn span.cur{ background:#07a939; color:#fff;}