Untitled

index.html

<main>
  

<section>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
</section>
  </main>

script.babel

const logos = document.querySelectorAll('div')
for (let i = 0; i < logos.length; i++) {
  logos[i].style.setProperty('--i', i)
  logos[i].style.setProperty('--d', Math.random() * 8)
  logos[i].style.setProperty('--a', Math.random() * 8 + 4)
  logos[i].style.setProperty('--hue', Math.floor(Math.random() * 360))
  logos[i].style.setProperty('--y', Math.floor(Math.random() * 100))
}

style.css

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

main {
  transform-style: preserve-3d;
  perspective: 80vmin;
}

section {
  width: 100vmin;
  aspect-ratio: 4 / 3;
  outline: 2px dashed red;
  transform-origin: 100% 50%;
  rotate: y 40deg;
  container-type: inline-size;
  mask: linear-gradient(90deg, #0000 0 40px, #fff, #0000 calc(100% - 40px) 100%);
  
  div {
    width: 40px;
    aspect-ratio: 1;
    background: red;
    position: absolute;
    top: calc(var(--y) * 1%);
    background: hsl(var(--hue) 90% 60%);
    animation-name: travel;
    animation-iteration-count: infinite;
    animation-delay: calc(var(--d) * -1s);
    animation-duration: calc(var(--a) * 1s);
  }
}

@keyframes travel {
  0% {
    translate: 100cqi 0;
  }
  100% {
    translate: -50% 0;
  }
}

untitled.markdown

Untitled

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