body {
  background-color: black;
  background-image: radial-gradient(
      white,
      rgba(255, 255, 255, 0.2) 2px,
      transparent 40px
    ),
    radial-gradient(white, rgba(255, 255, 255, 0.15) 1px, transparent 30px),
    radial-gradient(white, rgba(255, 255, 255, 0.1) 2px, transparent 40px),
    radial-gradient(
      rgba(255, 255, 255, 0.4),
      rgba(255, 255, 255, 0.1) 2px,
      transparent 30px
    );
  background-size: 550px 550px, 350px 350px, 250px 250px, 150px 150px;
  background-position: 0 0, 40px 60px, 130px 270px, 70px 100px;
}

h1 {
  color: rgb(182, 94, 229);
  text-align: center;
}