*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  background:#000;
}

canvas{
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%, -50%);
  max-width: 100vw;
  max-height: 100vh;
}

#result{
  position: absolute;
  bottom:1%;
  left:1%;
  color: #fff;
  font-family: sans-serif;
  width:100%;
  background:transparent;
  font-size:130%;
  background: rgba(0, 0, 0, 0.5);
}

body{
  width:100vw;
  height:100vh;
  overflow: hidden;
}