.countdown-timer__block {
  min-width: 2.7rem;
  margin: 0 1.5rem;
}
@media (min-width: 768px) {
  .countdown-timer__block {
    min-width: 4.2rem;
    margin: 0 1.6rem;
  }
}
.countdown-timer__block div {
  line-height: 1;
}
.countdown-timer__block div::after {
  content: ":";
  position: absolute;
  top: 50%;
  inset-inline-end: -1.9rem;
  font-size: 0.5em;
  transform: translateY(-50%);
}
@media (min-width: 768px) {
  .countdown-timer__block div::after {
    inset-inline-end: -2.4rem;
  }
}
.countdown-timer__block:first-child {
  margin-inline-start: 0;
}
.countdown-timer__block:last-child {
  margin-inline-end: 0;
}
.countdown-timer__block:last-child div::after {
  display: none;
}