.countdown div {
  text-align: center;
  margin: 10px;
  width: 100px;
  padding: 15px 0;
  background: rgba(255, 255, 255, 0.12);
  border-top: 5px solid var(--bs-primary);
}

.countdown div h3 {
  font-weight: 700;
  font-size: 44px;
  margin-bottom: 15px;
}

.countdown div h4 {
  font-size: 16px;
  font-weight: 600;
}

@media (max-width: 575px) {
  .countdown div {
    width: 70px;
    padding: 10px 0;
    margin: 10px 8px;
  }
}

@media (max-width: 575px) {
  .countdown div h3 {
    font-size: 28px;
    margin-bottom: 10px;
  }
}

@media (max-width: 575px) {
  .countdown div h4 {
    font-size: 14px;
    font-weight: 500;
  }
}