div#menu
{
    /*高度*/
    height: 50px;
    font-size: 16px;}

div#menu ul
{
    margin: 0 auto;
    padding: 0;
    list-style: none;
    float: left;}

div#menu li
{
    position: relative;
    display: block;
    float: left;
    z-index: 9;
    border: none;
    font-weight: bolder;}
div#menu li:hover > ul
{
    left: 0;}

div#menu a
{
    position: relative;
    z-index: 10;
    height: 50px;
    display: block;
    float: left;
    line-height: 50px;
    text-decoration: none;
    line-height: 50px;
    width: 100px;}

div#menu li:hover > a
{
    background-color: #225991;}
div#menu li:hover > a span
{
    color: #06e9d5;}

div#menu span
{
    display: block;
    cursor: pointer;
    text-align: center; /*  margin-top: 5px;距离文字上部的位置*/ /*文字颜色*/
    color: #ffffff;
    line-height: 50px;
    height: 50px;}



/* menu::二级 */

div#menu ul ul
{
    display: block;
    position: absolute; /*子栏目距离主栏目的高度*/
    top: 50px;
    left: -999em; /*宽度*/
    width: 150px;
    background: #225991;}

div#menu ul ul li
{
    vertical-align: text-top;
    background: none;
    line-height: 30px;
    height: 35px;
    width: 150px;
    padding-left: 20px;
    font-size: 14px;}


div#menu ul ul a
{
    line-height: 30px;
    float: none;
    display: block;
    border: 0;
    z-index: -1;
    white-space: nowrap;
    width: 100%;}
div#menu ul ul li a span
{
    text-align: left;
    width: 100%;
    color: #ffffff;
    height: 30px;
    line-height: 30px;}
div#menu ul ul a:hover
{
    background: #225991;
    height: 30px;
    line-height: 30px;}
div#menu ul ul a:hover span
{
    border: 0;
    color: #06e9d6;
    height: 30px;
    line-height: 30px;}

div#menu ul ul a:hover #nlt
{
    width: 1px;
    height: auto;
    border: 0;
    color: #fe721d;}


div#menu ul ul li, div#menu ul ul li a
{
    z-index: auto;}