#pic_carousel{position:relative;width:1000px;height:517px;overflow:hidden;margin: 0 auto;text-align:center;} 
.lunbo_pic{ position:absolute; left:0; top:0; overflow:hidden; text-align:center;} 
.lunbo_pic li{ float:left; overflow:hidden;} 
.lunbo_pic li a img{ width:1000px; display:block;vertical-align:bottom; border:none;} 
.lunbo_curso{ position:absolute; left:50%; bottom:35px; } 
.lunbo_curso a{ background:url(../images/dian.png) no-repeat; float:left;margin-left:2px; color:#00F; width:17px; cursor:pointer; height:17px; line-height:17px; display:block; text-align:center;} 
.lunbo_curso .small_xz{ color:#F0F;background:#E4CA95;}
.lunbo_curso a:hover,.lunbo_curso .small_xz{background:url(../images/dian-on.png) no-repeat;}
.arr{ position:absolute;cursor:pointer;width:50px; height:100%;filter:alpha(opacity=0.5); -moz-opacity:0.5;-khtml-opacity: 0.5;opacity: 0.5;}
.transparent { filter:alpha(opacity=0); -moz-opacity:0;-khtml-opacity: 0;opacity: 0;} 
#arr_l{ left:0; background:#CCC url(../images/left.png) no-repeat center;} 
#arr_r{ right:0; background:#CCC url(../images/right.png) no-repeat center;} 
.tc_kuan{ position:absolute; top:50%; left:50%; margin-top:-25px; margin-left:-100px; width:200px; height:50px; line-height:50px; background:#CCC; color:#000;}