.back-to-top-container {
    display: none;
    position: fixed;
    bottom: 25px;
    right: 64px;
    text-decoration: none;
}
.back-to-top{
    display: none;
    position: fixed;
    bottom: 15px;
    right: 15px;
    font-size: 15px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.60);
    padding: 10px 15px;
    text-decoration: none;
}
.back-to-top-container a {
    color: #fff;
    background-color: rgba(0, 0, 0, 0.60);
    padding: 10px 15px;
    text-decoration: none;
}
.back-to-top-container .fa {
    display: inline;
    font-size: 15px;
}

.back-to-top-container a:hover, .back-to-top:hover {
    background-color: rgba(135, 135, 135, 0.50);
    color: #fff;
}