codepens/generative-voronoi-splodges-pixi/dist/style.css

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

canvas {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

body {
  overflow-x: hidden;
  background: #f0e9d9;
}