div#scroll2Top a {
    display: none;
    position: fixed;
    bottom: 100px;
    right: 100px;
    -moz-opacity: 0.3;
    -webkit-opacity: 0.3;
    opacity: 0.3;
    z-index: 5020;
}

div#scroll2Top a.scroll2Top_oldest_versions:after {
    font-family: "FontAwesome";
    font-size: 50px;
    position: absolute;
    content: "\f139";
}

div#scroll2Top a:hover {
    opacity: 0.9;
}

div#scroll2Top.ps_17 a {
    bottom: 40px;
}

div#scroll2Top.ps_17 a i {
    font-size: 50px;
}