.wp_nav
{
    display: block;
    margin: 0;
    padding: 0;
    display: block;
    *zoom: 1;
}
.wp_nav *
{
    margin: 0;
    padding: 0;
}
.wp_nav:after
{
    clear: both;
    content: ".";
    display: block;
    height: 0;
    visibility: hidden;
}
.wp_nav .nav-item
{
    display: inline-block;
    float: left;
    position: relative;
    vertical-align: bottom;
}
.wp_nav .on
{
    z-index: 10;
}
.wp_nav .nav-item .mark
{
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 99;
}
.wp_nav .nav-item a
{
    font-family: "Microsoft Yahei";
    display: block;
    text-align: center;
    position: relative;
    z-index: 100;
}
.wp_nav .nav-item a.parent
{
    color: #000;
}
.wp_nav .nav-item a span.item-name
{
    display: inline-block;
    padding: 5px 10px;
    line-height: 22px;
    cursor: pointer;
}
.wp_nav .sub-nav
{
    display: block;
    width: 100%;
    position: absolute;
    z-index: 200;
    visibility: hidden;
    border: 1px solid #ccc;
    border-top: none;
}
.wp_nav .sub-nav .nav-item
{
    white-space: nowrap;
}
.wp_nav .sub-nav .nav-item .mark
{
    background: #fff;
}
.wp_nav .sub-nav .nav-item a
{
    font-family: "Microsoft Yahei";
    font-size: 13px;
    font-weight: normal;
    color: #000;
    text-align: left;
    border-top: 1px solid #d8e1cc;
    min-width: 80px;
}
.wp_nav .sub-nav .nav-item a.parent:hover
{
    background: #eee;
    color: #000;
}
.wp_nav .sub-nav .nav-item a.parent
{
    background: #eee;
    color: #000;
}
.wp_nav .sub-nav .nav-item a span.item-name
{
    padding: 5px 10px;
    line-height: 22px;
}