Spinner

Source: Uiverse ↗
Author: Sourcesketch
Licence: MIT

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Code

<div class="container">
  <div class="dot dot-1"></div>
  <div class="dot dot-2"></div>
  <div class="dot dot-3"></div>
</div>

<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="goo">
      <feGaussianBlur
        result="blur"
        stdDeviation="10"
        in="SourceGraphic"
      ></feGaussianBlur>
      <feColorMatrix
        values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 21 -7"
        mode="matrix"
        in="blur"
      ></feColorMatrix>
    </filter>
  </defs>
</svg>

Prompt

Build "Spinner", a loader animation. Write it as plain HTML and CSS: one container element and a stylesheet, no JavaScript unless it is essential. Technique: CSS keyframes, inline SVG. It sits on a light background, in a 16:10 frame. Respect prefers-reduced-motion with a still state, pause work when the element is off screen, and keep it accessible. Original: https://uiverse.io/Sourcesketch/strange-catfish-68 (Sourcesketch, MIT).