section > attribution {
  position: fixed;
  bottom: 10px;
  right: 20px;
  font-size: 12px;
}

.reveal .slides section .fragment.highlight-grey,
.reveal .slides section .fragment.highlight-current-grey {
  opacity: 1;
  visibility: inherit; }
.reveal .slides section .fragment.highlight-grey.visible {
  color: #445; }
.reveal .slides section .fragment.highlight-current-grey.current-fragment {
  color: #445; }