.html {
  height: 100%;
  background: radial-gradient(ellipse at bottom, #1b2735 50%, #090a0f 100%);
  overflow: hidden;
}

#stars {
  width: 1px;
  height: 1px;
  background: transparent;
  animation: animStar 50s linear infinite;
}

#stars2 {
  width: 2px;
  height: 2px;
  background: transparent;
 	animation: animStar 100s linear infinite;
}

#stars3 {
  width: 3px;
  height: 3px;
  background: transparent;
  animation: animStar 150s linear infinite;
}

@keyframes animStar {
  from {
    transform: translate(0px,0px);
  }
  to {
    transform: translate(0px,-2000px);
  }
}