#arrow-up {
    position: fixed;
    right: 30px;
    bottom: 40px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 4px 30px 0 rgba(0, 0, 0, 0.25);

    transition: all .3s ease-in-out;
}

#arrow-up svg {
    width: 100%;
    height: 100%;
}

#arrow-up svg path {
    fill: white;
    transition: all .3s ease-in-out;
}

#arrow-up.active {
    opacity: 1;
    visibility: visible;
}

#arrow-up:hover svg path {
    fill: #eeeeee;
}

@media screen and (max-width: 991px) {
    #arrow-up {
        right: 20px;
        bottom: 20px;
    }
}