body {
  font-family: 'Segoe UI', sans-serif;
  text-align: center;
  background: linear-gradient(to bottom, #f0f0f0, #d0eaff);
}

#animationBox {
  margin: 20px auto;
  font-size: 50px;
  opacity: 0;
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
}

#animationBox.active {
  opacity: 1;
  transform: scale(1.5);
  color: gold;
  text-shadow: 0 0 10px #ff0;
}