.top1{
	width:100%;
    background-color: #2db0cc;
	height:10px;}
.top2{
	margin:0 auto;
	width:100%;
	background-color: #FFF;
	height:150px;}
.logo{
	margin:0 auto;
	width:1280px;
    height:150px;
    z-index: auto;
	background:url(logonew1.jpg) no-repeat;}
.top3{
	margin:0 auto;
    width:100%;
	height:50px;
	line-height:50px;
    background-color: #FFF;}
.top3 ul{
	width:1280px;
    margin:0 auto;}
.periodical_img {
	height:50px;
	line-height:50px;
    width:106.2px;
	text-align:center;
	float:left;}
.periodical_img a {
	color:#2a4e80;
	font-size:18px;
	font-weight:bold;}
.periodical_img_on {
	background: url(../images/menu_down.png) no-repeat;
	height:50px;
	line-height:50px;
	width:106.2px;
	text-align:center;
	float:left;}
.periodical_img_on a {
	font-size:18px;
	font-weight:bold;
	color:#fff;}
.drop_dwon {
	display:none;
	z-index:1000;
	margin: 0;
	background:url(../images/down_bg.png) repeat-y;
	width:106.2px;
	position:relative;
 	z-index:999;
    height:35px;
    line-height: 35px;}   
.drop_dwon a{
	font-size:16px;}
.drop_dwon2 {
	display:none;
	z-index:1000;
	margin: 0;
	background:url(down_line.png) no-repeat;
	width:106.2px;
	position:relative;
 	z-index:999;
    height:2px;}
.drop_dwon3 {
	display:none;
	z-index:1000;
	margin-top:-2px;
	background:url() no-repeat;
	width:106.2px;
	position:relative;
 	z-index:998;
    height:13px;}
.secondnavmousemove{
	background:url(down_bg2.png) repeat-y;
    width:106.2px;
    height:37px;}