.counter {
  display: inline-block;
  font-weight: bold;
  transition: all 0.3s ease;
}

.counter-plus {
  display: inline-block;
  font-weight: bold;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.5s ease;
}

.counter.finished + .counter-plus {
  opacity: 1;
  transform: translateX(0);
}