body {
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: black;
    margin-top: 15vmin;
    overflow: hidden;
}

.circles {
    width: 60vmin;
    height: 60vmin;
    position: relative;
    animation: zoom 5s linear infinite;
}

@keyframes zoom {
    to {
        transform: scale(0.5) translateY(-50%);
    }
}

.circles span {
    position: absolute;
    box-sizing: border-box;
    width: 50%;
    height: 50%;
    background-color: white;
    border-radius: 50%;
    left: 25%;
    transform-origin: bottom center;
    --deg: calc(1turn / var(--particles) * (var(--n) - 1));
    animation: rotating 5s ease-in-out infinite;
    mix-blend-mode: difference;
}

@keyframes rotating {
    0% {
        transform: rotate(0deg);
    }

    50% {
        transform: rotate(var(--deg)) translateY(0);
    }

    100% {
        transform: rotate(var(--deg)) translateY(100%) scale(2);
    }
}