body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f2f2f2;
}

.welcome-container {
  text-align: center;
}

.hidden {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.show {
  opacity: 1;
  transform: translateY(0);
  animation: welcomeAnimation 20s infinite alternate;
}

@keyframes welcomeAnimation {
  0% {
    font-size: 16px;
    color: #000;
  }
  100% {
    font-size: 48px;
    color: #ff9900;
  }
}
}