html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #bbc0ca;
  color: #e5eefc;
  font-family: Arial, sans-serif;
  touch-action: none;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  position: fixed;
  inset: 0;
}

#app {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

#game-parent {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: #bbc0ca;
}

#game-parent canvas {
  display: block;
  margin: auto;
}