.context {
   width: 100%;
   position: absolute;
   top: 50vh;
}

.context h1 {
   text-align: center;
   color: #fff;
   font-size: 50px;
}

.area {
   /* background: #4e54c8; */
   background: -webkit-linear-gradient(to left, #8f94fb, #4e54c8);
   width: 100%;
   height: 100%;
   position: absolute;
}

.circles {
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   overflow: hidden;
}

.circles li {
   position: absolute;
   display: block;
   list-style: none;
   width: 20px;
   height: 20px;
   animation: animate 25s linear infinite;
   bottom: -110px;
}

.circles li:nth-child(1) {
   left: 25%;
   width: 80px;
   height: 80px;
   animation-delay: 0s;
   background: red;
}

.circles li:nth-child(2) {
   left: 10%;
   width: 20px;
   height: 20px;
   animation-delay: 2s;
   animation-duration: 12s;
   background: yellow;
}

.circles li:nth-child(3) {
   left: 70%;
   width: 20px;
   height: 20px;
   animation-delay: 4s;
   background: blue;
}

.circles li:nth-child(4) {
   left: 40%;
   width: 60px;
   height: 60px;
   animation-delay: 0s;
   animation-duration: 18s;
   background: red;
}

.circles li:nth-child(5) {
   left: 65%;
   width: 20px;
   height: 20px;
   animation-delay: 0s;
   background: yellow;
}

.circles li:nth-child(6) {
   left: 75%;
   width: 110px;
   height: 110px;
   animation-delay: 3s;
   background: blue;
}

.circles li:nth-child(7) {
   left: 35%;
   width: 110px;
   height: 110px;
   animation-delay: 7s;
   background: red;
}

.circles li:nth-child(8) {
   left: 50%;
   width: 25px;
   height: 25px;
   animation-delay: 15s;
   animation-duration: 45s;
   background: yellow;
}

.circles li:nth-child(9) {
   left: 20%;
   width: 15px;
   height: 15px;
   animation-delay: 2s;
   animation-duration: 35s;
   background: blue;
}

.circles li:nth-child(10) {
   left: 85%;
   width: 110px;
   height: 110px;
   animation-delay: 0s;
   animation-duration: 11s;
   background: blue;
}

@keyframes animate {
   0% {
      transform: translateY(0) rotate(0deg);
      opacity: 1;
      border-radius: 10px;
   }
   100% {
      transform: translateY(-1000px) rotate(720deg);
      opacity: 0;
      border-radius: 50%;
   }
}