.scroll {

    font-size: 20px;
    margin-left: 50%;
    transform: translateX(-50%);
    background-color: #555555;
    border-radius: 8px;
    transition-duration: 0.4s;

}

#scrollButton:hover {
    font-size: 32px;
    background-color: #555555;
    box-shadow: 0 12px 16px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0 rgba(0, 0, 0, 0.19);
    color: red;
}