body {
  background-color: #F8F3A9;
  margin: 0;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
  min-height: 100vh;
}

canvas {
  border-radius: .4em;
  margin:30vh 65vh auto;
}