a.go-to-top {
    visibility: visible;
    position: fixed;
    right: 100px;
    bottom: 15px;
    height: 25px;
    padding: 5px 10px;
    line-height: 25px;
    background-color: #679100;
    color: #FFFFFF;
    display: block;
    text-transform: uppercase;
    text-decoration: none;
    text-align: center;
    font-weight: bold;
    z-index: 9999;
    border-radius: 2px;
    -webkit-transition: all .3s linear;
    -moz-transition: all .3s linear;
    -ms-transition: all .3s linear;
    transition: all .3s linear;
    opacity: .7;
    filter: alpha(opacity=70);
}
a.go-to-top:hover {
    opacity: 1;
    filter: alpha(opacity=100);
    background-color: #333;
    color: #FFFFFF;
}
a.go-to-top.hidden {
    visibility: hidden;
}