#nav_rs {
    padding: 6px 0;
    border-bottom:1px solid #ddd;
    position:fixed;
    top:0px;
    left:0px;
    right:0px;
    z-index:999999;
}

#nav_rs ul {
    text-align: center;
    list-style:none;
    padding:0;
    margin:0;
}

#nav_rs ul li {
    vertical-align: top;
    display: inline-block;
    /* if you need ie6/7 support */
    *display: inline;
    zoom: 1
}

#nav_rs a {
    font-size:13px;
    font-weight:bold;
    float:left;
    padding: 2px 4px;
    color:#999;
    text-decoration: none;
    border:1px solid #ccc;
    cursor: pointer;
    height:16px;
    line-height:16px;
}

#nav a:hover {
    background:#D9D9DA none;
    color: #fff;
}

#nav a.top span, #nav a.bottom span {
    float:left;
    width:16px;
    height:16px;
}

#nav a.top span {
}

#nav a.bottom span {
}