.trail {
    position: fixed;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    pointer-events: none;
    background: orange;
    animation: fadeOut 0.8s linear forwards;
    z-index: 9999;
}

@keyframes fadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    100% {
        opacity: 0;
        transform: scale(0.3);
    }
}