codepens/generative-quadtree-based-grid-layouts/dist/style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

svg {
  width: 75vmin;
  height: 75vmin;
  overflow: visible;
}