* { 
  font: 1rem monospace;
  margin-left: auto;
  margin-right: auto;
}

body {
  background-color: rgb(220, 220, 220);
}

canvas {
  display: block;
}

h1 {
  font-size: 2rem;
}

label {
  display: inline-block;
  margin-top: 10px;
  margin-bottom: 10px;
}