#overlay {
  display: none;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2;
}

.close-button {
  position: absolute;
  top: 0;
  right: 5px;
  cursor: pointer;
  font-size: 1.5rem;
  font-weight: bold;
}

.close-button:hover {
  filter: brightness(3);
}