.e3_teacher {
	width: 958px; margin-top: 5px; float: left; margin-left:6px
}
 
.e3_teacher_con {
	width: 958px; float: left; 
}
.e3_teacher_con_arr {
	width: 25px; height: 150px; padding-top: 180px; float: left;
}
.e3_teacher_con_arr img {
	float: left; cursor: pointer;
}
.e3_teacher_win {
	width: 899px; height: 389px; float: left;
}
.e3_teacher_show {
	width: 288px;
	float: left;
	border:1px solid #EAE8E8;
	height:180px;
	margin-top: 8px;
	margin-right: 9px;
	margin-bottom: 0px;
	margin-left: 0px;
}
.e3_teacher_show img {
	float: left;
}