/* 本案例代码begin */
.left_nav{ width:175px; height:auto;padding:0px; background:#FFFFFF; }
.left_nav dl dt{ width:160px; line-height:25px; padding-left:5px; color:#333333; margin-bottom:4px;}
.left_nav dl dd{ width:175px; position:relative;}
.left_nav dl dd .nav_right{ width:400px; height:auto; overflow:hidden; position:absolute; left:170px; top:0px; padding:1px; display:none;}
.left_nav dl dd .nav_right a{ width:190px;height:25px; line-height:25px; text-align:left; color:#333333;padding-left:20px;  display:block; float:left; margin-top:0px; white-space:nowrap; border-bottom:#CCCCCC 1px solid;
 text-overflow:ellipsis;
 -o-text-overflow:ellipsis;
 overflow: hidden;}
.left_nav dl dd .nav_right a:hover{ width:170px; height:25px; line-height:25px; text-align:left; color:#333333;padding-left:20px;  text-decoration:none;}
.left_nav dl dd a.nav_left{width:175px; height:25px; line-height:25px;  padding-left:30px; display:block; border-bottom:1px solid #fff;color:#333333; white-space:nowrap;
 text-overflow:ellipsis;
 -o-text-overflow:ellipsis;
 overflow: hidden;}
.left_nav dl dd a.nav_left:hover{ color:#333333; text-decoration:none;}