.unprocessed {
  -webkit-animation-name: color-blink; /* Safari 4.0 - 8.0 */
  -webkit-animation-duration: 4s; /* Safari 4.0 - 8.0 */
  animation-name: color-blink;
  animation-duration: 4s;
  animation-iteration-count: infinite;
}

.unprocessed-child {
  background-color: orange;
}

/* Safari 4.0 - 8.0 */
@-webkit-keyframes color-blink {
  from {
    background-color: #222222;
  }
  to {
    background-color: orange;
  }
}

@keyframes color-blink {
  from {
    background-color: #222222;
  }
  to {
    background-color: orange;
  }
}