body, html {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #000;
  /* Prevent touch highlights/menus */
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
#game-container {
  width: 100vw;
  height: 100vh;
}