body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  text-align: center;
}

canvas {
  width: 400px;
  height: 400px;
  border: 1px solid black;
  image-rendering: pixelated;
}

button {
  width: 200px;
  height: 50px;
  margin-left: 100px;
}

#preContainer {
  display: grid;
  margin-left: 20px;
  grid-template-columns: 150px 150px;
}