.lei_expo{position:relative;}
.lei_expo .loading{position:absolute;width:100%;height:100%;background:#fff url(img/loading.gif) center no-repeat;z-index:9;}
.lei_expo .pic li{position:absolute;}
.lei_expo .pic li img{width:100%;height:100%;border:0;}
.lei_expo .txt_bg{position:absolute;bottom:0;z-index:1;height:36px;width:100%;background:#000;filter:alpha(opacity=60);opacity:0.6;}/*标题背景*/
.lei_expo .txt li{position:absolute;z-index:2;left:0;height:36px;line-height:36px;}
.lei_expo .txt li a{display:block;color:#fff;padding-left:10px;font:bold 15px/26px Arial,"Microsoft Yahei";text-decoration:none;}/*标题样式*/
.lei_expo .num{position:absolute;z-index:3;bottom:8px;right:3px;}
.lei_expo .num li{float:left;position:relative;width:20px;height:20px;font:13px/20px Arial,"Microsoft Yahei";overflow:hidden;text-align:center;margin-right:8px;cursor:pointer;}
.lei_expo .num li a,.lei_expo .num li b{position:absolute;z-index:2;display:block;background:#fff;color:#333;width:100%;height:100%;top:0;left:0;text-decoration:none;-webkit-transition:all 0.4s;-moz-transition:all 0.4s;-o-transition:all 0.4s;}/*按钮样式*/
.lei_expo .num li b{z-index:1;background:#fff;filter:alpha(opacity=50);opacity:0.5;}
.lei_expo .num li.hover a,.lei_expo .num li.current a{background:#1f7ecc;color:#fff;}/*当前/悬停按钮*/