.ban_ersbox{ width: 100%; min-width:1000px;clear: both; position: relative; height:250px;}
.ban_box{ position: relative; width: 100%; height:250px; }
.ban_box li{text-align: center; overflow: hidden; float: left;position: absolute; top: 0; left: 0; width: 100%; height:250px; opacity: 1;filter:alpha(opacity=0);}
.ban_box li a{ display: block;width: 100%;  height: 100%;}
.ban_box li .ban_msc{height: 80px;
  position: absolute;
  bottom: 20px;
  z-index: 9999999;
  background: red;
  width: 100%;}
  .ban_box li .ban_tes{
    font-weight: bold;
  }
  .ban_box li p{
    color: #fff;
  }
.ban_box li img{ width: 100%; height: 250px;}

/*圆点*/
.ban_cir{ overflow: hidden; position: absolute; z-index: 100;}
.ban_cir li{ float: left; width: 30px; height: 5px; margin:0 5px; cursor: pointer; background: #fff; opacity: 0.8;filter:alpha(opacity=80);}
.ban_cir_on{ background: #000 !important;}

/*按钮*/
.ban_btn{ position: absolute; width: 100%; top: 80px;opacity: 0.3;}
.banleft_btn, .banright_btn{width: 30px; height: 80px; background: #000;opacity: 0.5;filter:alpha(opacity=80); cursor: pointer; color: #fff; line-height: 80px; font-size: 30px; text-align: center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;}
.banleft_btn{ float: left;}
.banright_btn{ float: right;}