iv#rel-pos-wrapper
  {
  background-color: yellow;
  font: 1.25em/1 serif;
  height: 3em;
  margin: 1em;
  position: relative;
  width: 32em;
  }

  div > div
  {
  font-size: 1em;
  height: 3em;
  position: absolute;
  top: 0em;
  width: 2em;
  }

  div#black1
  {
  background-color: black;
  left: 1em;
  }

  div#black2
  {
  background-color: black;
  left: 4em;
  }

  div#black3
  {
  background-color: black;
  height: 2em;
  left: 7em;
  }

  div#pink1
  {
  background-color: pink;
  left: 12em;
  }

 