example-three.css

.box {
  background: #f7f7f7;
  padding: 10px;
  margin: 0 0 10px 0;
  color: black;
  position: relative;
}

.box_small {
  height: 200px;
  width: 300px;
}

.box_wide {
  height: 400px;
  width: 500px;
}