html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #03060c;
  overflow: hidden;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

#game {
  display: block;
  touch-action: none;
  background: #03060c;
  box-shadow: 0 0 60px rgba(40, 120, 180, 0.18);
}