body {
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #222;
    overflow: hidden;
}

.worm {
    display: flex;
    align-items: center;
    justify-content: center;
    --particles: 12;
}

.worm span {
    position: absolute;
    --diameter: calc(100vmin - var(--n) * 90vmin / var(--particles));
    width: var(--diameter);
    height: var(--diameter);
    border-radius: 50%;
    border: 3px solid;
    background-color: hsl(336, 100%, calc((19 + var(--n) * 3) * 1%));
    border-color: hsl(336, 100%, calc((36 + var(--n) * 1) * 1%));
    box-shadow: 0 0 33px rgba(0, 0, 0, 0.3);
    animation: rotating 4s infinite cubic-bezier(0.6, -0.5, 0.3, 1.5);
    animation-delay: calc(1s - var(--n) * 100ms);
    transform-origin: 0%;
}

@keyframes rotating {
    to {
        transform: rotate(1turn);
        filter: hue-rotate(5deg);
    }
}

.worm span:nth-child(1) { --n: 1; }
.worm span:nth-child(2) { --n: 2; }
.worm span:nth-child(3) { --n: 3; }
.worm span:nth-child(4) { --n: 4; }
.worm span:nth-child(5) { --n: 5; }
.worm span:nth-child(6) { --n: 6; }
.worm span:nth-child(7) { --n: 7; }
.worm span:nth-child(8) { --n: 8; }
.worm span:nth-child(9) { --n: 9; }
.worm span:nth-child(10) { --n: 10; }
.worm span:nth-child(11) { --n: 11; }
.worm span:nth-child(12) { --n: 12; }