.zimu {
	border-bottom:1px solid #eeeeee;
}
.zimu h1 {
	font-size:16px;
	color:#333333;
	display:block;
	float:left;
	margin-top:4px;
	margin-right:5px;
}
.zimu a {
	display:block;
	font-size:16px;
	color:#666666;
	float:left;
	padding:5px 10px;
	margin-right:5px;
	margin-bottom:5px;
}
.zimu a:hover {
	background:#a71931;
	color:#fff;
}
.teacher_hover {
	background:#a71931;
	color:#fff !important;
}
.teacher a {
	display:block;
	width:150px;
	float:left;
	margin-right:20px;
	margin-top:20px;
	height:251px;
}
.teacher a h1 {
	font-size:16px;
	color:#333333;
	text-indent:20px;
	padding-top:7px;
}
.teacher a span {
	display:block;
	font-size:12px;
	color:#666666;
	padding-bottom:4px;/*12.16*/
	text-indent:0;
	padding-left:20px;
}
.teacher a p {
	margin:2px 0px;
	font-size:12px;
	color:#666666;
	height: 17px;
	text-indent:20px;
}
.teacher a:hover h1 {
	color:#a71931;
	border-bottom:1px solid #a71931;
}
.teacher a:hover p {
	color:#a71931;
}
.classification {
	height:30px;
	margin-bottom:20px;
}
.classification h1 {
	width:113px;
	height:30px;
	background:#a71931;
	float:left;
	margin-right:20px;
}
.classification h1 a {
	font-size:16px;
	color:#fff;
	line-height:30px;
	text-align:center;
	display:block;
}

<!--我新增的20170206-->
.classroom_department {
    margin-bottom: 25px;
}

.classroom_department h1 {
    color: #a71931;
    font-size: 16px;
    display: block;
    border-bottom: 1px solid #a71931;
    background: url(../images/Game_diam.png) 0px 3px no-repeat;
    padding-left: 20px;
    padding-bottom: 10px;
}

.department {
    margin-bottom: 20px;
    margin-top: 10px;
}

.department a {
    display: block;
    float: left;
    color: #333;
    font-size: 14px;
    line-height: 27px;
    width: 70px;
}

.main_a{ width:262px; height:260px; float:left; display:block; margin-right:20px; margin-bottom:25px;}

.bg{ width:262px; height:210px; position:relative;}

.bg_z{ position:absolute; width:50px; height:50px; background:url(../images/benke.jpg) no-repeat; bottom:20px; left:20px;}

.main_a:hover .bg_z{  background:url(../images/benke_h.jpg) no-repeat;}

.main_a h1{ height:49px; width:244px; border:1px solid #dcdcdc; font-size:18px; color:#333333; line-height:47px; padding-left:17px; background:url(../images/pic_jiantou.png) 225px 18px no-repeat;}

.main_a:hover h1{ color:#a71931;  background:url(../images/pic_jiantou_h.png) 212px 18px no-repeat;}


.main_b{ width:265px; height:260px; float:left; display:block; margin-right:20px; margin-bottom:25px;}

.bg{ width:265px; height:210px; position:relative;}

.bg_x{ position:absolute; width:50px; height:50px; background:url(../images/boshi.jpg) no-repeat; bottom:20px; left:20px;}

.main_b:hover .bg_x{  background:url(../images/boshi_h.jpg) no-repeat;}

.main_b h1{ height:49px; width:244px; border:1px solid #dcdcdc; font-size:18px; color:#333333; line-height:47px; padding-left:17px; background:url(../images/pic_jiantou.png) 225px 18px no-repeat;}

.main_b:hover h1{ color:#a71931;  background:url(../images/pic_jiantou_h.png) 212px 18px no-repeat;}


.main_c{ width:263px; height:260px; float:left; display:block; margin-right:0px; margin-bottom:25px;}

.bg{ width:263px; height:210px; position:relative;}

.bg_c{ position:absolute; width:50px; height:50px; background:url(../images/keyan.jpg) no-repeat; bottom:20px; left:20px;}

.main_c:hover .bg_c{  background:url(../images/keyan_h.jpg) no-repeat;}

.main_c h1{ height:49px; width:244px; border:1px solid #dcdcdc; font-size:18px; color:#333333; line-height:47px; padding-left:17px; background:url(../images/pic_jiantou.png) 225px 18px no-repeat;}

.main_c:hover h1{ color:#a71931;  background:url(../images/pic_jiantou_h.png) 212px 18px no-repeat;}