.reveal {
  border-radius: 5px;
}

.reveal .close-button {
  position: absolute;
  background-color: rgba(0, 0, 0, .7);
  border-radius: 50%;
  padding: 0 .6rem .3rem;
  color: white;
}

.reveal .close-button:hover {
  background-color: #333;
}