.contentDiv {
    position: relative;
}

@keyframes bouncing {
    0% {bottom: 0;}
    50% {bottom: 20px;}
    100% {bottom: 0;}
}

@keyframes disappear {
    0% {opacity: 255;}
    100% {opacity: 0;}
}

.arrow {
    animation: bouncing 1s infinite ease-in-out;
    bottom: 0;
    display: block;
    height: 50px;
    left: 90%;
    margin-left: -25px;
    position: absolute;
    width: 50px;
}

.arrow.hidden {
    animation: disappear 0.2s ease-in;
    opacity: 0;
    pointer-events: none; /* Prevent interaction when hidden */
}