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HTML 

              
                <div class="placemat"></div>
<div class="bowl">
  <div class="text">alphabet<br />soup</div>
</div>
<button class="btn" id="add-noodles">add more noodles</button>
!

CSS 

              
                @import url("https://fonts.googleapis.com/css2?family=Gluten:wght@600&family=Space+Mono&display=swap");

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  --color-noodle: hsl(32 100% 75%);
  --color-soup: hsl(10 100% 34%);
  --color-placemat: hsla(0 100% 39% / 0.5);

  display: grid;
  grid-template-areas: "body";
  place-items: center;
  font-family: "Gluten", monospace;
  background: hsl(186deg 67% 74%);
}

body > * {
  grid-area: body;
}

.placemat {
  width: 90vmin;
  aspect-ratio: 5 / 4;
  background: white;
  background-image: linear-gradient(
      90deg,
      var(--color-placemat) 50%,
      transparent 0
    ),
    linear-gradient(var(--color-placemat) 50%, transparent 0);
  background-size: 4vmin 4vmin;
  border-radius: 0.5vmin;
  box-shadow: hsla(0 0% 0% / 0.1) 0 1vmin 1vmin -0.5vmin;
}

.bowl {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  grid-template-areas: "bowl";
  aspect-ratio: 1;
  width: 75vmin;
  font-size: 10vmin;
  text-transform: uppercase;
  background: var(--color-soup);
  color: var(--color-noodle);
  border-radius: 50%;
  border: 5vmin solid white;
  box-shadow: hsla(0 0% 0% / 0.05) 2vmin 2vmin 2vmin -2vmin,
    hsla(0 0% 0% / 0.05) -2vmin -2vmin 2vmin -2vmin, white 0 0 0 5vmin,
    hsla(0 0% 0% / 0.1) -5vmin -5vmin 10vmin 1vmin inset,
    hsla(0 0% 0% / 0.1) 5vmin 5vmin 10vmin 1vmin inset,
    hsl(0 0% 0% / 0.1) 0 0 0 0.5vmin inset,
    hsla(0 0% 0% / 0.07) 5vmin 5vmin 1vmin;
}

.bowl > * {
  grid-area: bowl;
}

.text {
  width: 100%;
  text-align: center;
}

.char {
  position: relative;
  letter-spacing: -0.1em;
  transform: scaleX(0.8);
}

.btn {
  --bg-color: hsl(60deg 95% 60%);
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-family: "Space Mono", monospace;
  background-color: var(--bg-color);
  border: 2px dashed black;
  border-radius: 0.125rem;
  cursor: pointer;
  transform: translateY(-1px);
  box-shadow: var(--bg-color) 0 0 0 2px, hsla(0 0% 0% / 0.2) 2px 2px 6px;
}

.btn:focus-visible {
  box-shadow: none;
  border-color: transparent;
  outline-offset: -4px;
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--bg-color) 0 0 0 2px, hsla(0 0% 0% / 0.2) 2px 2px 4px;
}
!

JS 

              
                const bowl = document.querySelector(".bowl");
const text = document.querySelector(".text");
const addNoodlesBtn = document.getElementById("add-noodles");
const chars = new SplitText(text, { type: "chars", charsClass: "char" });
const alphabet = "abcdefghijklmnopqrstuvwxyz";

gsap.defaults({ overwrite: true });

function getRandomInt(val) {
  return Math.ceil(Math.random() * val) * (Math.round(Math.random()) ? 1 : -1);
}

function addLetter() {
  const el = document.createElement("div");
  const char = alphabet[Math.floor(Math.random() * alphabet.length)];
  const pos = 40;
  const translate = 30;
  const rotate = 60;

  el.innerText = char;
  el.classList.add("char");
  el.style.top = `${getRandomInt(pos)}%`;
  el.style.left = `${getRandomInt(pos)}%`;

  bowl.appendChild(el);
  gsap.to(el, {
    xPercent: () => getRandomInt(translate),
    yPercent: () => getRandomInt(translate),
    rotation: () => getRandomInt(rotate),
    ease: "expo.out",
    duration: 2
  });
}

function moveChars(obj) {
  const { event, deltaX, deltaY } = obj;
  const el = event.target;
  const r = el.getBoundingClientRect();
  const y = event.clientY - (r.top + Math.floor(r.height / 2));
  const t = 5;

  gsap.to(obj.event.target, {
    xPercent: `+=${deltaX * t}`,
    yPercent: `+=${deltaY * t}`,
    rotation: `-=${deltaX * t * Math.sign(y)}`,
    duration: 3,
    ease: "expo.out"
  });
}

Observer.create({
  target: bowl,
  onMove: (self) => self.event.target.matches(".char") && moveChars(self)
});

gsap.to(".char", {
  xPercent: () => getRandomInt(10),
  yPercent: () => getRandomInt(10),
  rotation: () => getRandomInt(20),
  duration: 5
});

addNoodlesBtn.addEventListener("click", addLetter);
!
999px

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