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

body {
  font-family: "Courier New", Courier, monospace;
  padding: 10px;
}

h1 {
  display: block;
  text-align: center;
  padding: 20px;
}

.container {
  max-width: 400px;
  margin: 0 auto;
}

.image {
  width: 100%;
}

.pixelation {
  padding: 10px 0;
}

output {
  display: inline-block;
}
canvas {
    image-rendering: optimizeSpeed;
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -o-crisp-edges;
    image-rendering: crisp-edges;
    -ms-interpolation-mode: nearest-neighbor;
}