#preloader {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background-color: #ffffff;
  z-index: 9999;
}

#preloader h3 {
  margin: 0;
  font-family: Arial, sans-serif;
  font-size: 32px;
  color: #ffc107;
  animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}