.banner{ width:100%; height:570px; margin:0 auto; text-align:center; background:#fff; position:relative }

.ibanner { width: 1800px; height: 570px;margin:0 auto;  text-align:center; background:#fff; position:relative ; overflow:hidden; margin-bottom: 15px; background:none }

/*数字按钮样式*/
.ibanner .num { overflow:hidden; height: 25px; position: absolute; bottom:5px; left: 50%; zoom:1; z-index:3; margin-left:-60px }
.ibanner .num li { width: 28px; height: 10px; line-height: 26px; text-align: center;  font-family: "微软雅黑", Arial; color: #FFFFFF;   margin-right: 8px;   cursor:pointer; float: left; background:#fff; font-size:0px }
.ibanner .num li.on { background:#B84362;font-size:0px  } /*当前项*/

/*上一个  下一个*/
.ibanner .prev,.ibanner .next { display: none; width: 40px; height: 76px; background:url(img/prev.png) no-repeat; position: absolute; top:50%; }
.ibanner .prev { left: 0; left:5%;}
.ibanner .next { right: 0;background:url(img/next.png) no-repeat; right:5%;}
.ibanner ul{width:100%; text-align:center;}
.ibanner ul li{ height: 570px;width:100%; text-align:center}
.ibanner ul li img{  height:100%}