.crossfade-Puerto-Vallarta > figure {
  animation: imageAnimation 30s linear infinite 0s;
  backface-visibility: hidden;
  background-size: cover;
  background-position: center center;
  color: transparent;
  height: 100%;
  left: 0px;
  opacity: 0;
  position: fixed;
  top: 0px;
  width: 100%;
  z-index: -2;
}
/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575px) { 
.crossfade-Puerto-Vallarta > figure:nth-child(1) { background-image: url('