html {
  height: 100%;
}

body {
  background: black;
  color: white;
  font-family: monospace;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  margin: 0;
  padding: 0;
}

.star {
  position: absolute;
  margin: 0;
  color: yellow;
}

.star:nth-of-type(2n+1) {
  color: orange;
}