.banner_ac *{padding:0;margin:0;list-style:none;}
.banner_ac{ min-width:997px; position:relative; height:300px; overflow:hidden; margin:0 auto;  }
.banner_ac .bd{ position:relative; z-index:0; }
.banner_ac .bd ul{ width:100% !important; }
.banner_ac .bd li{ width:100% !important; height:300px; text-align:center; }
.banner_ac .bd li img {border:0;}
.banner_ac .bd li a{text-decoration:none;}
.banner_ac .hd{ width:100%; position:absolute; z-index:1; bottom:0px; left:0; height:30px; line-height:30px; }
.banner_ac .hd ul{ text-align:center; }
.banner_ac .hd ul li{ cursor:pointer; display:inline-block; *display:inline; zoom:1; width:42px; height:11px; margin:1px; overflow:hidden; background:#000; filter:alpha(opacity=50);opacity:0.5; line-height:999px; }
.banner_ac .hd ul .on{ background:#f00;  }
.banner_ac .prev,
.banner_ac .next{ display:block; position:absolute; z-index:1; top:50%; margin-top:-30px; left:5%;  z-index:1; width:40px; height:60px; background:url(../../inc/pptshow5/pptshow5_ctr.png) -126px -137px #000 no-repeat;  cursor:pointer; filter:alpha(opacity=50);opacity:0.5; display:none;  }
.banner_ac .next{ left:auto; right:5%; background-position:-6px -137px; }