.kb-tl {
  animation: kenburns_tl 7s ease;
}
.kb-tr {
  animation: kenburns_tr 7s ease;
}
.kb-center {
  animation: kenburns_center 7s ease;
}

@keyframes kenburns_tl {
  0% {
    -webkit-transform-origin: top left;
    -moz-transform-origin: top left;
    -ms-transform-origin: top left;
    -o-transform-origin: top left;
    transform-origin: top left;
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes kenburns_tr {
  0% {
    -webkit-transform-origin: top right;
    -moz-transform-origin: top right;
    -ms-transform-origin: top right;
    -o-transform-origin: top right;
    transform-origin: top right;
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes kenburns_center {
  0% {
    -webkit-transform-origin: center;
    -moz-transform-origin: center;
    -ms-transform-origin: center;
    -o-transform-origin: center;
    transform-origin: center;
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}