#page-top {
    position: fixed;
    bottom: 30px;
    right: 55px;
    z-index:2000;
}
#page-top a {
    text-decoration: none;
    color: #fff;
    display: block;
    opacity: 0.6;
}
#page-top a:hover {
    text-decoration: none;
    opacity: 1;
    border-bottom:none;
}