.dtree {//定义目录树节点的字体，字号，颜色
 font-family: "宋体";
 font-size: 15px;
 color: #2B2B2B;
 white-space: nowrap;
}
.dtree img {//定义选用节点图标的样式，位置
 border: 0px;
 vertical-align: middle;
}
.dtree a {//
 color: #006600;
 text-decoration: none;
}
.dtree a.node, .dtree a.nodeSel {
 white-space: nowrap;
 padding: 0px 0px 0px 0px;
}
.dtree a.node:hover, .dtree a.nodeSel:hover {
 color: #006600;
 text-decoration: none;
}
.dtree a.nodeSel {
 background-color: #c0d2ec;
}
.dtree .clip {
 overflow: hidden;
}