@keyframes Pulse {
  0% {
    width: 90px;
    height: 90px;
  }
  25% {
    width: 105px;
    height: 105px;
  }
  50% {
    width: 130px;
    height: 130px;
  }
  75% {
    width: 110px;
    height: 110px;
  }
  100% {
    width: 90px;
    height: 90px;
  }
}

#counter-box {
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  opacity: 0.2;
  width: 90px;
  height: 90px;
  background-color: rgb(183, 0, 0);
  border-radius: 50%;
  border: 6px solid white;
  visibility: none;
  display: none;
  animation: Pulse 1s linear infinite;
}

#counter-box:hover {
  opacity: 1;
  cursor: pointer;
}

#counter-num {
  position: relative;
  text-align: center;
  margin: 0px;
  padding: 0px;
  top: 50%;
  transform: translate(0%, -50%);
  color: white;
}