#back-top {
    bottom: 10px;
    margin-left: 20px;
    position: fixed;
    z-index: 499;
    _position: absolute;
    _margin-top: 500px;
}

body {
    _background: url(null) fixed;
}

#back-top a {
    font: 11px/100% Arial, Helvetica, sans-serif;
    transition: 1s;
    width: 50px;
    text-align: center;
    color: rgb(187, 187, 187);
    text-transform: uppercase;
    text-decoration: none;
    display: block;
    font-size-adjust: none;
    font-stretch: normal;
    -webkit-transition: 1s;
    -moz-transition: 1s;
}

#back-top-prev a {
    font: 11px/100% Arial, Helvetica, sans-serif;
    transition: 1s;
    width: 50px;
    text-align: center;
    color: rgb(187, 187, 187);
    text-transform: uppercase;
    text-decoration: none;
    display: block;
    font-size-adjust: none;
    font-stretch: normal;
    -webkit-transition: 1s;
    -moz-transition: 1s;
}

#back-top a:hover {
    color: rgb(0, 0, 0);
}

#back-top-prev a:hover {
    color: rgb(0, 0, 0);
}

#back-top span#button {
    background-position: center;
    border-radius: 8px;
    transition: 1s;
    width: 50px;
    height: 50px;
    margin-bottom: 7px;
    display: block;
    opacity: 0.8;
    background-image: url("up-arrow.png");
    background-repeat: no-repeat;
    background-color: rgb(221, 221, 221);
    -moz-border-radius: 8px;
    -webkit-border-radius: 8px;
    -webkit-transition: 1s;
    -moz-transition: 1s;
}

#back-top-prev span#button-prev {
    background-position: center;
    border-radius: 8px;
    transition: 1s;
    width: 50px;
    height: 50px;
    margin-bottom: 7px;
    display: block;
    opacity: 0.8;
    background-image: url("up-arrow.png");
    background-repeat: no-repeat;
    background-color: rgb(221, 221, 221);
    -moz-border-radius: 8px;
    -webkit-border-radius: 8px;
    -webkit-transition: 1s;
    -moz-transition: 1s;
}

#back-top a:hover span#button {
    opacity: 1;
}

#back-top-prev a:hover span#button-prev {
    opacity: 1;
}

#edit-scroll-to-top-preview {
    width: 100%;
    float: right;
}