body {
  color: white;
  margin: 0;
  text-align: center;
  background-color: black;
  font-family: 'Segoe UI Light', Tahoma, Geneva, Verdana, sans-serif;
}
canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.dg {
  display: none;
}

.disable-selection {
     -moz-user-select: none; /* Firefox */
      -ms-user-select: none; /* Internet Explorer */
   -khtml-user-select: none; /* KHTML browsers (e.g. Konqueror) */
  -webkit-user-select: none; /* Chrome, Safari, and Opera */
  -webkit-touch-callout: none; /* Disable Android and iOS callouts*/
}