.galaxy {
  z-index: 0;
  background-color: black;
}
.galaxy .star {
  position: absolute;
  background-color: white; 
}
.galaxy .star-type1 {
  width: 1px;
  height: 1px;
  border-radius: 2px;
  -webkit-box-shadow: 0 0 1px 1px white;
  box-shadow: 0 0 1px 1px white;
}
.galaxy .star-type2 {
  width: 2px;
  height: 2px;
  border-radius: 2px;
  -webkit-box-shadow: 0 0 2px 1px white;
  box-shadow: 0 0 2px 1px white;
}
.galaxy .star-type3 {
  width: 2px;
  height: 2px;
  border-radius: 2px;
  -webkit-box-shadow: 0 0 2px 0 white;
  box-shadow: 0 0 2px 0 white;
}