* {
  margin: 0;
  padding: 0;
}

ul {
  padding: 5px;
}
li {
  margin: 10px 0;
}

.context {
  width: 100%;
  position: absolute;
  top: 50vh;
}
.context h1 {
  text-align: center;
  color: white;
  font-size: 50px;
}

.area {
  width: 100%;
  height: 100vh;
  position: fixed;
  top: 0;
  z-index: -1;
}

.circles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.circles li {
  position: absolute;
  display: block;
  list-style: none;
  background: linear-gradient(135deg, #3a8ee6, #00539C) !important ;
  animation: animate 25s linear infinite;
  bottom: -150px;
}

.circles li:nth-child(1) { left: 25%; width: 80px; height: 80px; }
.circles li:nth-child(2) { left: 10%; width: 20px; height: 20px; animation-delay: 2s; animation-duration: 12s; }
.circles li:nth-child(3) { left: 70%; width: 20px; height: 20px; animation-delay: 4s; }
.circles li:nth-child(4) { left: 40%; width: 60px; height: 60px; animation-duration: 18s; }
.circles li:nth-child(5) { left: 65%; width: 20px; height: 20px; }
.circles li:nth-child(6) { left: 75%; width: 110px; height: 110px; animation-delay: 3s; }
.circles li:nth-child(7) { left: 35%; width: 150px; height: 150px; animation-delay: 7s; }
.circles li:nth-child(8) { left: 50%; width: 25px; height: 25px; animation-delay: 15s; animation-duration: 45s; }
.circles li:nth-child(9) { left: 20%; width: 15px; height: 15px; animation-delay: 2s; animation-duration: 35s; }
.circles li:nth-child(10){ left: 85%; width: 150px; height: 150px; animation-duration: 11s; }

@keyframes animate {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
    border-radius: 0;
  }
  100% {
    transform: translateY(-1000px) rotate(720deg);
    opacity: 0;
    border-radius: 50%;
  }
}

#app {
  max-width: 100vw !important;
  overflow: hidden;
  padding: 0px !important;
}