html, body {
  margin: 0;
  padding: 0;
  font-family: 'Alegreya Sans', sans-serif;
  font-size: 0.9rem;
}

canvas{
  display: block;
  margin: 0 auto;
}

#controls{
  text-align: center;
  
}

input[type="number"]{
  width: 2em;
  text-align: center;
  margin: 1ex;
}