.i_nav{
        width: 1260px;
    /* float: right; */
    margin: 0 auto;}
.inav_s {
     padding:0 20px;
    height: 56px;
    line-height: 56px;
    position: relative;
    width: 1220px;
    margin: 0 auto;
    z-index: 9;    background:url(images/i_nav_bg.png);    border-radius: 10px;}

.inav_s a {
    color: #fff;}

.inav_s .nLi {
    float: left;
    position: relative;
    display: inline;}

.inav_s .nLi h3 {
    float: left;}

.inav_s .nLi h3 a {
display: block;
    padding: 0px 20px;
    font-size: 19px;background:url(images/nav_nda.png) top repeat-x;}

.inav_s .sub {
    display: none;
    width: 200px;
    left: 0;
    top: 56px;
    position: absolute;
    background:url(images/i_nav_bg2.png); 
    line-height:56px;
    padding: 0;
    font-size: 14px;
    text-align: center;}

.inav_s .sub li {
    zoom: 1;height:40px;line-height:40px;}
.inav_s .sub li:hover{background: #eeeeee;
    color: #024628;}
    .inav_s .sub li:hover a{
    color: #024628;}
.inav .sub a {
    display: block;
    padding: 0 10px;}

.inav_s .sub a:hover {}

.inav_s .on h3 a {
    background:url(images/i_nav_bg2.png); 
    color: #ffffff;}

.inav_s h3 a:hover {
    background:url(images/i_nav_bg2.png); 
    color: #ffffff;}