.arrow {
    position: relative;
    left: 55vw;
    /* transform: translate(-50%, -50%); */
    transform: rotate(180deg);
}

.arrow span {
    display: block;
    width: 1vw;
    height: 1vw;
    border: 5px solid white;
    border-radius: 50px;
    transform: rotate(45deg);
    margin: -10px;
    animation: animate 2s infinite;
}

.arrow span:nth-child(2) {
    animation-delay: -0.2s;
}

.arrow span:nth-child(3) {
    animation-delay: -0.4s;
}

@keyframes animate {
    0% {
        opacity: 0;
        transform: rotate(45deg) translate(-20px, -20px);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: rotate(45deg) translate(20px, 20px);
    }
}

@media only screen and (min-width: 750px) {
    .arrow {
        display: none;
    }
}