.grid {
  max-width: 69em;
  list-style: none;
  margin: 30px auto;
  padding: 0;
}

.grid li {
  display: block;
  float: left;
  padding: 7px;
  width: 25%;
  opacity: 0;
}

.grid li.shown, .no-js .grid li, .no-cssanimations .grid li {
  opacity: 1;
}

.grid li a, .grid li img {
  outline: none;
  border: none;
  display: block;
  max-width: 100%;
}

/* Effect 1: opacity */

.grid.effect-1 li.animate {
  -webkit-animation: fadeIn 0.65s ease forwards;
  -moz-animation: fadeIn 0.65s ease forwards;
  animation: fadeIn 0.65s ease forwards;
}

@-webkit-keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@-moz-keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* Effect 2: Move Up */

.grid.effect-2 li.animate {
  -webkit-transform: translateY(200px);
  -moz-transform: translateY(200px);
  transform: translateY(200px);
  -webkit-animation: moveUp 0.65s ease forwards;
  -moz-animation: moveUp 0.65s ease forwards;
  animation: moveUp 0.65s ease forwards;
}

@-webkit-keyframes moveUp {
  to {
    -webkit-transform: translateY(0);
    opacity: 1;
  }
}

@-moz-keyframes moveUp {
  to {
    -moz-transform: translateY(0);
    opacity: 1;
  }
}

@keyframes moveUp {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Effect 3: Scale up */

.grid.effect-3 li.animate {
  -webkit-transform: scale(0.6);
  -moz-transform: scale(0.6);
  transform: scale(0.6);
  -webkit-animation: scaleUp 0.65s ease-in-out forwards;
  -moz-animation: scaleUp 0.65s ease-in-out forwards;
  animation: scaleUp 0.65s ease-in-out forwards;
}

@-webkit-keyframes scaleUp {
  to {
    -webkit-transform: scale(1);
    opacity: 1;
  }
}

@-moz-keyframes scaleUp {
  to {
    -moz-transform: scale(1);
    opacity: 1;
  }
}

@keyframes scaleUp {
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* Effect 4: fall perspective */

.grid.effect-4 {
  -webkit-perspective: 1300px;
  -moz-perspective: 1300px;
  perspective: 1300px;
}

.grid.effect-4 li.animate {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform: translateZ(400px) translateY(300px) rotateX(-90deg);
  -moz-transform: translateZ(400px) translateY(300px) rotateX(-90deg);
  transform: translateZ(400px) translateY(300px) rotateX(-90deg);
  -webkit-animation: fallPerspective .8s ease-in-out forwards;
  -moz-animation: fallPerspective .8s ease-in-out forwards;
  animation: fallPerspective .8s ease-in-out forwards;
}

@-webkit-keyframes fallPerspective {
  100% {
    -webkit-transform: translateZ(0px) translateY(0px) rotateX(0deg);
    opacity: 1;
  }
}

@-moz-keyframes fallPerspective {
  100% {
    -moz-transform: translateZ(0px) translateY(0px) rotateX(0deg);
    opacity: 1;
  }
}

@keyframes fallPerspective {
  100% {
    transform: translateZ(0px) translateY(0px) rotateX(0deg);
    opacity: 1;
  }
}

/* Effect 5: fly (based on http://lab.hakim.se/scroll-effects/ by @hakimel) */

.grid.effect-5 {
  -webkit-perspective: 1300px;
  -moz-perspective: 1300px;
  perspective: 1300px;
}

.grid.effect-5 li.animate {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform-origin: 50% 50% -300px;
  -moz-transform-origin: 50% 50% -300px;
  transform-origin: 50% 50% -300px;
  -webkit-transform: rotateX(-180deg);
  -moz-transform: rotateX(-180deg);
  transform: rotateX(-180deg);
  -webkit-animation: fly .8s ease-in-out forwards;
  -moz-animation: fly .8s ease-in-out forwards;
  animation: fly .8s ease-in-out forwards;
}

@-webkit-keyframes fly {
  100% {
    -webkit-transform: rotateX(0deg);
    opacity: 1;
  }
}

@-moz-keyframes fly {
  100% {
    -moz-transform: rotateX(0deg);
    opacity: 1;
  }
}

@keyframes fly {
  100% {
    transform: rotateX(0deg);
    opacity: 1;
  }
}

/* Effect 6: flip (based on http://lab.hakim.se/scroll-effects/ by @hakimel) */

.grid.effect-6 {
  -webkit-perspective: 1300px;
  -moz-perspective: 1300px;
  perspective: 1300px;
}

.grid.effect-6 li.animate {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform-origin: 0% 0%;
  -moz-transform-origin: 0% 0%;
  transform-origin: 0% 0%;
  -webkit-transform: rotateX(-80deg);
  -moz-transform: rotateX(-80deg);
  transform: rotateX(-80deg);
  -webkit-animation: flip .8s ease-in-out forwards;
  -moz-animation: flip .8s ease-in-out forwards;
  animation: flip .8s ease-in-out forwards;
}

@-webkit-keyframes flip {
  100% {
    -webkit-transform: rotateX(0deg);
    opacity: 1;
  }
}

@-moz-keyframes flip {
  100% {
    -moz-transform: rotateX(0deg);
    opacity: 1;
  }
}

@keyframes flip {
  100% {
    transform: rotateX(0deg);
    opacity: 1;
  }
}

/* Effect 7: helix (based on http://lab.hakim.se/scroll-effects/ by @hakimel) */

.grid.effect-7 {
  -webkit-perspective: 1300px;
  -moz-perspective: 1300px;
  perspective: 1300px;
}

.grid.effect-7 li.animate {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform: rotateY(-180deg);
  -moz-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
  -webkit-animation: helix .8s ease-in-out forwards;
  -moz-animation: helix .8s ease-in-out forwards;
  animation: helix .8s ease-in-out forwards;
}

@-webkit-keyframes helix {
  100% {
    -webkit-transform: rotateY(0deg);
    opacity: 1;
  }
}

@-moz-keyframes helix {
  100% {
    -moz-transform: rotateY(0deg);
    opacity: 1;
  }
}

@keyframes helix {
  100% {
    transform: rotateY(0deg);
    opacity: 1;
  }
}

/* Effect 8:  */

.grid.effect-8 {
  -webkit-perspective: 1300px;
  -moz-perspective: 1300px;
  perspective: 1300px;
}

.grid.effect-8 li.animate {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform: scale(0.4);
  -moz-transform: scale(0.4);
  transform: scale(0.4);
  -webkit-animation: popUp .8s ease-in forwards;
  -moz-animation: popUp .8s ease-in forwards;
  animation: popUp .8s ease-in forwards;
}

@-webkit-keyframes popUp {
  70% {
    -webkit-transform: scale(1.1);
    opacity: .8;
    -webkit-animation-timing-function: ease-out;
  }
  100% {
    -webkit-transform: scale(1);
    opacity: 1;
  }
}

@-moz-keyframes popUp {
  70% {
    -moz-transform: scale(1.1);
    opacity: .8;
    -moz-animation-timing-function: ease-out;
  }
  100% {
    -moz-transform: scale(1);
    opacity: 1;
  }
}

@keyframes popUp {
  70% {
    transform: scale(1.1);
    opacity: .8;
    animation-timing-function: ease-out;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@media screen and (max-width: 900px) {
  .grid li {
    width: 50%;
  }
}

@media screen and (max-width: 400px) {
  .grid li {
    width: 100%;
  }
}