*, *:before, *:after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-size: 0;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

canvas {
  background-color: black;
}