.w-h {
  width: 450px;
  margin: 110px auto;
  position: relative;
}
.w-h::before {
  content: "";
  display: block;
  padding-top: 100%;
}
.w-h > div {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  position: absolute;
}
.w-h > div > div {
  width: 100%;
  height: 100%;
}
#message {
  left: 0;
  top: 50%;
  width: 100%;
  text-align: center;
  transform: translateY(-50%);
  position: absolute;
}
#loading {
  position: relative;
  width: 100%;
  height: 100%;
}
.twinkle {
  width: 8%;
  height: 8%;
  position: absolute;
  border-radius: 24px;
  background: rgb(4, 159, 102);
  animation: twinkle linear 1.2s infinite;
  -webkit-animation: twinkle linear 1.5s infinite;
}
.twinkle:nth-child(1) {
  left: 46%;
  top: 0%;
  animation-delay: 0s;
}
.twinkle:nth-child(2) {
  left: 80%;
  top: 16%;
  animation-delay: 0.15s;
}
.twinkle:nth-child(3) {
  left: 92%;
  top: 46%;
  animation-delay: 0.15s;
}
.twinkle:nth-child(4) {
  left: 80%;
  top: 78%;
  animation-delay: 0.3s;
}
.twinkle:nth-child(5) {
  left: 46%;
  top: 92%;
  animation-delay: 0.6s;
}
.twinkle:nth-child(6) {
  left: 16%;
  top: 78%;
  animation-delay: 0.75s;
}
.twinkle:nth-child(7) {
  left: 0%;
  top: 46%;
  animation-delay: 0.9s;
}
.twinkle:nth-child(8) {
  left: 16%;
  top: 16%;
  animation-delay: 1.05s;
}

@keyframes twinkle {
  0%,
  40%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  20% {
    opacity: 0.2;
    transform: scale(3);
  }
}
@-webkit-keyframes twinkle {
  0%,
  40%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  20% {
    opacity: 0.2;
    transform: scale(3);
  }
}