.animate {
  width: 100%;
  height: 360px;
  color: white;
}

.a-area {
  position: absolute;
  left: 0;
  top: -10%;
  width: 100%;
  height: 860px;
  overflow: hidden;
}

.a-area li {
  position: absolute;
  display: block;
  list-style: none;
  width: 25px;
  height: 25px;
  box-shadow: 2px 5px 5px rgba(0, 0, 0, 0.2);
  border-color: black;
  border-style: double;
  background-image: radial-gradient(circle at 50% 80%, rgb(255,255,255,0), rgb(255,255,255,0)74%, white 80%, white 84%, rgb(255,255,255,0)100%);
  animation: animate 30s linear infinite;
  bottom: -120px;
}

.a-area li:nth-child(1) {
  left: 86%;
  width: 80px;
  height: 80px;
  animation-delay: 0s;
  border-radius: 45%;
  animation-duration: 14s;
}

.a-area li:nth-child(2) {
  left: 6%;
  width: 30px;
  height: 30px;
  animation-delay: 1.2s;
  animation-duration: 10s;
  border-radius: 45%;
}

.a-area li:nth-child(3) {
  left: 70%;
  width: 100px;
  height: 100px;
  animation-delay: 4.8s;
  border-radius: 45%;
  animation-duration: 8.6s;
}

.a-area li:nth-child(4) {
  left: 36%;
  width: 150px;
  height: 150px;
  animation-delay: 0s;
  animation-duration: 14s;
  border-radius: 45%;
}

.a-area li:nth-child(5) {
  left: 65%;
  width: 50px;
  height: 50px;
  animation-delay: 0s;
  border-radius: 45%;
  animation-duration: 22s;
}

.a-area li:nth-child(6) {
  left: 15%;
  width: 110px;
  height: 110px;
  animation-delay: 3.2s;
  border-radius: 45%;
  animation-duration: 12.8s;
}

.a-area li:nth-child(7) {
  left: 80%;
  width: 80px;
  height: 80px;
  animation-delay: 6s;
  border-radius: 45%;
  animation-duration: 16s;
}

.a-area li:nth-child(8) {
  left: 52%;
  width: 42px;
  height: 42px;
  animation-delay: 6s;
  border-radius: 45%;
  animation-duration: 12s;
}

.a-area li:nth-child(9) {
  left: 12%;
  width: 46px;
  height: 46px;
  animation-delay: 12s;
  border-radius: 45%;
  animation-duration: 16.8s;
}

.a-area li:nth-child(10) {
  left: 26%;
  width: 60px;
  height: 60px;
  animation-delay: 9s;
  border-radius: 45%;
  animation-duration: 18s;
}


/* Key Frames */

@keyframes animate {
  0% {
      transform: translateY(0) rotate(0deg);
      opacity: 0.6;
  }

  100% {
    transform: translateY(-2400px) rotate(360deg);
    opacity: 0.6;
  }
}