#horse1 {
  width: 50px;
  height: 50px;
  background-color: blue; /* You can change this to an image of a horse */
  position: absolute;
  top: 100px; /* Set the initial vertical position */
}

#horse2 {
  width: 50px;
  height: 50px;
  background-color: red; /* You can change this to an image of a horse */
  position: absolute;
  top: 200px; /* Set the initial vertical position */
}

#horse3 {
  width: 50px;
  height: 50px;
  background-color: green; /* You can change this to an image of a horse */
  position: absolute;
  top: 300px; /* Set the initial vertical position */
}

#horse4 {
  width: 50px;
  height: 50px;
  background-color: yellow; /* You can change this to an image of a horse */
  position: absolute;
  top: 400px; /* Set the initial vertical position */
}

#horse5 {
  width: 50px;
  height: 50px;
  background-color: black; /* You can change this to an image of a horse */
  position: absolute;
  top: 500px; /* Set the initial vertical position */
}