.box {
  width: 100px;
  height: 40px;
  border: 2px solid green;
  background-color: #f2f2f2;
  text-align: center;
  line-height: 40px;
  margin-bottom: 10px;
}

.diamond {
  width: 80px;
  height: 80px;
  background-color: #f2f2f2;
  border: 2px solid green;
  transform: rotate(45deg);
  margin-bottom: 10px;
}