body {
  margin: 0;
  overflow: hidden;
  background: radial-gradient(circle at center, #0b1630, #050814);
  font-family: Arial;
}

#ui {
  position: absolute;
  width: 100%;
  text-align: center;
  top: 20px;
  color: white;
  text-shadow: 0 0 15px #00c3ff;
  z-index: 10;
}