.fa-star {
	margin: 0.5em;
  font-size: 24px;
}

span {
	display: inline-block;
  margin: 0.5em;
  text-align: center;
  background-color: #ccc;
  width: 24px;
  border-radius: 50%;
  cursor: pointer;
}

.selected {
	background-color: #eee;
  color: #ddd;
  cursor: not-allowed;
}

.used {
	background-color: #aaddaa;
  color: #99bb99;
  cursor: not-allowed;
}