.countdown-container {
  color: #333;
  text-align: center;
  margin: 0 auto;
}

.countdown-item {
  display: inline-block;
  font-size: 1.5em;
  list-style-type: none;
  padding: 1em;
  text-transform: uppercase;
  color: white;
}

.countdown-item span {
  display: block;
  font-size: 4.5rem;
}

@media all and (max-width: 768px) {
  .title {
    font-size: calc(1.5rem * var(--smaller));
  }
  .countdown-item {
    font-size: calc(1.125rem * var(--smaller));
  }
  .countdown-item span {
    font-size: calc(3.375rem * var(--smaller));
  }
}