.about_us_title1 {
	width:169px;
	height:53px;
	margin-left:20px;
	margin-top:30px;
}
.about_us_msg1 {
	margin:0px auto;
	width:720px;
	margin-top:20px;
}
.p1 {
    font-family:Arial;
    font-size:12px;
 	color:#000000;
	line-height:18px;
	text-indent:2em;
}
.about_us_pic {
	margin:0px auto;
	width:720px;
	margin-top:20px;
}
.zizhi {
	width:660px;
	height:111px;
	margin-left:20px;
	margin-top:30px;

}
.about_us_zizhi {
    float:left;
	width:292px;
	height:111px;
	margin-right:30px;
}