#back-to-top {
    background-color: #00ABF3;
    bottom: 30px;
    box-shadow: 0 0 6px #00CD00;
    color: #fff;
    padding: 10px 10px;
    position: fixed;
    right: 50px;
    cursor: pointer;
}
#back-to-top a {
    color: #ffffff;
    display: block;
    height: 100%;
    width: 100%;
}
#back-to-top a:hover {
    color: #ffffff;
}