body {
  margin: 0;
  padding: 0;
  overflow: hidden;
}

#countdown-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(45deg, #FF0000, #00FF00, #0000FF, #FFFF00);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

#countdown-text {
  font-size: 3em;
  color: white;
  text-align: center;
}

#countdown-details {
  font-size: 1.5em;
  color: white;
  text-align: center;
}

#copyright {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: white;
}