@import url('https://fonts.googleapis.com/css2?family=Orbitron&display=swap');

html{
  overflow: hidden;
}
*{
  margin: 0;
  padding: 0;
}

body{
  font-family: 'Orbitron', sans-serif;
  background: #1b1b1b;
  color: #fff;
}

.context{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  height: 90vh;
}

h1{
  font-size: 1.5em;
  margin: 10px;
}

button{
  padding: 10px 50px;
  margin: 10px;
  background: none;
  border: .5px solid #fff;
  color: #fff;
}

.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;
    background: white;
    opacity: blur(5px);
    animation: animate 25s linear infinite;
     right: -150px;
    
}

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

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

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

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

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

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

.circles li:nth-child(7){
    top: 35%;
    width: 150px;
    height: 150px;
    animation-delay: 7s;
}

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

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

.circles li:nth-child(10){
    top: 85%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
    animation-duration: 11s;
}


@keyframes animate {

    0%{
        transform: translateX(0);
        opacity: 1;
        border-radius: 0;
    }

    100%{
        transform: translateX(-2000px);
        opacity: 0;
        border-radius: 50%;
    }

}