.head_img_wrap{
	position:relative;
}
.head_img{
	width:100%;
}
.head_img_txt{
	position:absolute;
	top:50%;
	left:17%;
	margin-top:-3%;
}
.center{
	width:1200px;
	margin:0 auto;
	padding-top:40px;
}
.background_block{
	position:absolute;
	background:#f5f5f5;
	width:100%;
	height:700px;
	z-index:-1;
}
.ourTeam{
	margin-left:10%;
	background-color:#fff;
	width:82%;
}
.horizontalline{
	width:10px;
	height:2px;
	background-color:#808080;
	margin:25px 0;
}
.ourTeam_img{
	width:50%;
	float:left;
}
.ourTeam_des{
	width:50%;
	padding:5.8% 7.5% 0 5.4%;
	overflow:hidden;
	box-sizing:border-box;
}
h3{
	font-size:24px;
}
p{
	font-size:14px;
	color:#5e5e5e;
	letter-spacing:1px;
}
.staffBirthday{
	margin-top:20px;
	margin-bottom:20px;
	background-color:#333;
	overflow:hidden;
	width:82%;
}
.staffBirthday_img{
	float:left;
	width:50%;
}
.staffBirthday_des{
	float:left;
	width:50%;
	padding:5.8% 7.5% 0 5.4%;
	box-sizing:border-box;
}
.staffBirthday_des h3{
	color:#fefefe;
}
.staffBirthday_des p{
	color:#c1c1c1;
}
.staffBirthday_des .horizontalline{
	color:#c1c1c1;
}
.physics_training_wrap{
	padding:48px 0;
}
.physics_training_wrap span{
	font-size:20px;
	display:block;
	color:#2a2a2a;
}
.physics_training_wrap img{
	display:block;
}
.physics_training_wrap .horizontalline{
	margin:0 0;
}
.physics_wrap{
	margin-top:30px;
	margin-bottom:115px;
}
.physics_wrap .ourTeam{
	width:100%;
	margin-left:0;
	background-color:#333;
}
.physics_wrap .ourTeam p,.horizontalline{
	color:#c1c1c1;
}
.physics_wrap .ourTeam h3{
	color:#fefefe;
}
.physics_wrap .staffBirthday{
	width:100%;
	margin:0 0;
	background-color:#f5f5f5;
}
.physics_wrap .staffBirthday p{
	color:#828282;
}
.physics_wrap .staffBirthday h3{
	color:#2a2a2a;
}
.physics_wrap .tdkz{
	background:#fff;
}