h1{font-size:30pt;text-align:center}
h2{color:black;font-size:16pt;text-align:center}
body{background-color:rgb(167, 206, 180)}
input[type="number"] {width: 60px;}
canvas {
  background-color: white;
  border: 1px solid #ccc;
  margin-top: 15px;
  max-width: 90vw;
  max-height: 400px;
}