body {
    margin: 0;
    overflow: hidden;
}

.particle {
    width: 80px;
    height: 80px;
    background: url('cottonswab.png') no-repeat center/cover;
    position: absolute;
    bottom: 100vh;
    top: 0vh;

    animation: fallAndSpin 8s infinite linear;
}
.particle-trail {
    width: 80px;
    height: 80px;
    background: url('cottonswab.png') no-repeat center/cover;
    position: absolute;
    bottom: 100vh;
    top: 0vh;
    background-color: rgba(0, 0, 0, 1);
    animation: fallAndSpin 8s infinite linear;
}
@keyframes fallAndSpin {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
    }
    50% {
        transform: translateY(0) rotate(1080deg);
    }
}