a.closeBtn{position:absolute;top:10px;right:10px;display:block;width:60px;padding:4px 0;text-align:center;background:#fff;border:1px solid #85B6E2;color:#333;}
a.closeBtn:hover{color:#fff;border:1px solid #85B6E2;background:#85B6E2;}
/* blk */
.blk{width:964px;position:relative;}
.blk .head, .blk .head-right, .blk .foot, .blk .foot-right{background:url(/kejian/pop_up_bg.png);overflow:hidden;height:4px;}
.blk .head{padding-left:4px;}
.blk .head-right{background-position:right top;}
.blk .foot{padding-left:4px;background-position:left bottom;_height:3px;}
.blk .foot-right{background-position:right bottom;}
.blk .main{border:2px solid #85B6E2;position:relative;background:#fff;}
.blk .main h2{font:bold 16px "Microsoft YaHei";padding:7px 20px 5px 0px;;color:#85B6E2; height:22px; line-height:22px; margin:0px;}
.blk .main ul{padding:20px;zoom:1;overflow:hidden;font-size:12px;}
.blk .main ul li{float:left;width:100px;text-align:center;line-height:30px;margin-bottom:10px;}
.blk .main ul li a{color:#333;display:block;}
.blk .main ul li a:hover{background:#85B6E2;color:#fff;font-weight:bold;font-size:14px;}
/* 自定义样式 */
.t5 .blk{width:700px;}
.t5 .blk h2{color:#aaa;}
.t5 .blk .main ul li a{color:#aaa;}
.t5 .blk .head, .t5 .blk .head-right, .t5 .blk .foot, .t5 .blk .foot-right{background:url(/kejian/pop_up_bg2.png);}
/* popup_iframe */
* html .popup_iframe{width:expression(this.previousSibling.style.width);height:expression(this.previousSibling.style.height);}

/* 控制按钮CSS */
#ppt { margin-top:5px;}
.kongzhi { width:550px; height:28px; line-height:28px; margin:12px auto; border:1px #CCCCCC dashed; padding:2px;}
.kongzhi img { margin:0px; padding:0px; vertical-align:middle;}
.kongzhi span {width:85px;float:left;color: #F66F00;font-size: 28px;font-family: Constantia,Georgia;display:block;}
.kongzhi a { width:70px; display:block; float:left;}
.kongzhi .yema { width:160px; float:left; margin-left:20px;}
.kongzhi .yema input { float:left; width:50px; }
/* 课件主页CSS */
.kejiant {}
.kejiant div { width:237px; height:200px;float:left;}
.kejiant span { height:28px; line-height:28px; text-align:center;}
.kejiant img { padding:2px; border:1px #CCCCCC solid; margin:5px 3px;  }
.kejiant img:hover { border:1px #42994F solid;}