html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #070a12;
  color: #eaf0ff;
  font-family: Arial, Helvetica, sans-serif;
}

#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
}

#splash {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: #070a12;
  color: #a5ddff;
  font-size: 18px;
}