.countdown-container {
  text-align: center;
  font-family: Arial, sans-serif;
}

#countdown-timer {
  font-size: 24px;
  color: #000;
  margin: 10px 0;
}

#countdown-progress-container {
  width: 100%;
  background-color: #e0e0e0;
  border-radius: 25px;
  overflow: hidden;
  margin: 20px 0;
  height: 30px;
}

#countdown-progress-bar {
  height: 100%;
  background-color: #4caf50;
  width: 0%;
  transition: width 1s linear;
}