.indicator {
  position: sticky;
  bottom: 0;
  top:auto;
  /*left: 50%;
  transform: translateX(-50%);*/
  display: flex;
  flex-direction: column; 
  align-items: center;
  opacity: 0; 
  transition: opacity 0.3s ease;
  z-index: 99;
  background: transparent;
}

.indicator i {
  font-size: 24px;  
  animation: indicate 1s infinite;
  margin-top: -10px; 
}

.indicator i:nth-child(1) {
  animation-delay: 0s;
}

.indicator i:nth-child(2) {
  animation-delay: 0.2s;
}

.indicator i:nth-child(3) {
  animation-delay: 0.4s;
}

.indicator i:nth-child(4) {
  animation-delay: 0.6s;
}

.indicator i:nth-child(5) {
  animation-delay: 0.8s;
}

@keyframes indicate {
  0% {
    color: white;
    opacity: 0;
  }
  25% {
    color: white;
    opacity: 1;
  }
  50% {
    color: black;
    opacity: 1;
  }
  75% {
    color: black;
    opacity: 1;
  }
  100% {
    color: white;
    opacity: 0;
  }
}