/* Functions */
/* Implementation */
body {
  margin: 0;
  padding: 0;
  background: black;
  overflow: hidden;
}

.shiftingtiles {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
  margin: 0;
  padding: 0;
}

.shiftingtiles > .loading {
  display: none;
  position: absolute;
  line-height: 100vh;
  text-align: center;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 100;
  background: black;
  color: white;
  font-size: 1.5rem;
  margin: 0;
  padding: 0;
}

.shiftingtiles > .row {
  position: relative;
  width: 200%;
  height: 50%;
  margin: 0;
  padding: 0;
}

.shiftingtiles > .row .single,
.shiftingtiles > .row .dual {
  background: white;
  float: left;
  height: 100%;
  box-sizing: border-box;
  border: 5px solid black;
  margin: 0;
  padding: 0;
}

.shiftingtiles > .row .single {
  width: 20%;
  background-size: cover;
  background-position: center;
  /* background-image: to be filled in ;*/
  -webkit-transform-origin: 0 100%;
  -moz-transform-origin: 0 100%;
  -ms-transform-origin: 0 100%;
  -o-transform-origin: 0 100%;
  transform-origin: 0 100%;
}

.shiftingtiles > .row .dual {
  width: 10%;
  -webkit-transform-origin: 0 50%;
  -moz-transform-origin: 0 50%;
  -ms-transform-origin: 0 50%;
  -o-transform-origin: 0 50%;
  transform-origin: 0 50%;
}

.shiftingtiles > .row .dual > div {
  width: 100%;
  height: 50%;
  box-sizing: border-box;
  border: solid black;
  border-width: 10px 0 0 0;
  background-size: cover;
  background-position: center;
  /* background-image: to be filled in ;*/
  margin: 0;
  padding: 0;
}

.shiftingtiles > .row .dual > div:first-child {
  border-top: 0;
}

.shiftingtiles > .row:not(:first-child) {
  margin-left: -100%;
}

.shiftingtiles > .row:not(:first-child) .single,
.shiftingtiles > .row:not(:first-child) .dual {
  float: right;
}

.shiftingtiles > .row:not(:first-child) .single {
  -webkit-transform-origin: 100% 0;
  -moz-transform-origin: 100% 0;
  -ms-transform-origin: 100% 0;
  -o-transform-origin: 100% 0;
  transform-origin: 100% 0;
}

.shiftingtiles > .row:not(:first-child) .dual {
  -webkit-transform-origin: 100% 50%;
  -moz-transform-origin: 100% 50%;
  -ms-transform-origin: 100% 50%;
  -o-transform-origin: 100% 50%;
  transform-origin: 100% 50%;
}

.single.disappear {
  -webkit-animation: disappear-single 1s 0 linear;
  -moz-animation: disappear-single 1s 0 linear;
  -ms-animation: disappear-single 1s 0 linear;
  -o-animation: disappear-single 1s 0 linear;
  animation: disappear-single 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-iteration-count: 1;
  -moz-animation-iteration-count: 1;
  -ms-animation-iteration-count: 1;
  -o-animation-iteration-count: 1;
  animation-iteration-count: 1;
  pointer-events: none;
}

.dual.disappear {
  -webkit-animation: disappear-dual 1s 0 linear;
  -moz-animation: disappear-dual 1s 0 linear;
  -ms-animation: disappear-dual 1s 0 linear;
  -o-animation: disappear-dual 1s 0 linear;
  animation: disappear-dual 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-iteration-count: 1;
  -moz-animation-iteration-count: 1;
  -ms-animation-iteration-count: 1;
  -o-animation-iteration-count: 1;
  animation-iteration-count: 1;
  pointer-events: none;
}

/* Ensure animations work on all screen sizes */
@media (max-width: 480px) {
  .single.disappear,
  .dual.disappear {
    animation-duration: 0.8s;
    -webkit-animation-duration: 0.8s;
    -moz-animation-duration: 0.8s;
    -ms-animation-duration: 0.8s;
    -o-animation-duration: 0.8s;
  }
}

@media (min-width: 1920px) {
  .single.disappear,
  .dual.disappear {
    animation-duration: 1.2s;
    -webkit-animation-duration: 1.2s;
    -moz-animation-duration: 1.2s;
    -ms-animation-duration: 1.2s;
    -o-animation-duration: 1.2s;
  }
}
.dual.disappear + *,
.single.disappear + * {
  -webkit-animation: bounce 1s 0 linear;
  -moz-animation: bounce 1s 0 linear;
  -ms-animation: bounce 1s 0 linear;
  -o-animation: bounce 1s 0 linear;
  animation: bounce 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-iteration-count: 1;
  -moz-animation-iteration-count: 1;
  -ms-animation-iteration-count: 1;
  -o-animation-iteration-count: 1;
  animation-iteration-count: 1;
}
.dual.disappear + * + *,
.single.disappear + * + * {
  -webkit-animation: bounce-small 1s 0 linear;
  -moz-animation: bounce-small 1s 0 linear;
  -ms-animation: bounce-small 1s 0 linear;
  -o-animation: bounce-small 1s 0 linear;
  animation: bounce-small 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-iteration-count: 1;
  -moz-animation-iteration-count: 1;
  -ms-animation-iteration-count: 1;
  -o-animation-iteration-count: 1;
  animation-iteration-count: 1;
}
.dual.disappear + * + * + *,
.single.disappear + * + * + * {
  -webkit-animation: bounce-small 1s 0 linear;
  -moz-animation: bounce-small 1s 0 linear;
  -ms-animation: bounce-small 1s 0 linear;
  -o-animation: bounce-small 1s 0 linear;
  animation: bounce-small 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-iteration-count: 1;
  -moz-animation-iteration-count: 1;
  -ms-animation-iteration-count: 1;
  -o-animation-iteration-count: 1;
  animation-iteration-count: 1;
}
.shiftingtiles.leave .row {
  -webkit-animation: leave-r 1s 0 linear;
  -moz-animation: leave-r 1s 0 linear;
  -ms-animation: leave-r 1s 0 linear;
  -o-animation: leave-r 1s 0 linear;
  animation: leave-r 1s 0 linear;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  -ms-animation-fill-mode: forwards;
  -o-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
}
.shiftingtiles.leave .row:first-child {
  -webkit-animation: leave-l 1.5s 0 linear;
  -moz-animation: leave-l 1.5s 0 linear;
  -ms-animation: leave-l 1.5s 0 linear;
  -o-animation: leave-l 1.5s 0 linear;
  animation: leave-l 1.5s 0 linear;
}
.shiftingtiles.left .row > * {
  display: none;
}
@-moz-keyframes bounce {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 15px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 15px/3.5*2;
  }
  75% {
    margin: 0 15px/3*2;
  }
  80% {
    margin: 0 15px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 15px/4;
  }
  100% {
    margin: 0;
  }
}
@-webkit-keyframes bounce {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 15px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 15px/3.5*2;
  }
  75% {
    margin: 0 15px/3*2;
  }
  80% {
    margin: 0 15px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 15px/4;
  }
  100% {
    margin: 0;
  }
}
@keyframes bounce {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 15px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 15px/3.5*2;
  }
  75% {
    margin: 0 15px/3*2;
  }
  80% {
    margin: 0 15px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 15px/4;
  }
  100% {
    margin: 0;
  }
}
@-moz-keyframes bounce-small {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 8px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 8px/3.5*2;
  }
  75% {
    margin: 0 8px/3*2;
  }
  80% {
    margin: 0 8px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 8px/4;
  }
  100% {
    margin: 0;
  }
}
@-webkit-keyframes bounce-small {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 8px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 8px/3.5*2;
  }
  75% {
    margin: 0 8px/3*2;
  }
  80% {
    margin: 0 8px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 8px/4;
  }
  100% {
    margin: 0;
  }
}
@keyframes bounce-small {
  0% {
    margin: 0;
  }
  10% {
    margin: 0;
  }
  30% {
    margin: 0 8px/1;
  }
  60% {
    margin: 0;
  }
  70% {
    margin: 0 8px/3.5*2;
  }
  75% {
    margin: 0 8px/3*2;
  }
  80% {
    margin: 0 8px/3.5*2;
  }
  89% {
    margin: 0 1px;
  }
  90% {
    margin: 0;
  }
  91% {
    margin: 0 1px;
  }
  96% {
    margin: 0 8px/4;
  }
  100% {
    margin: 0;
  }
}
@-moz-keyframes disappear-single {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 20%;
  }
  10% {
    width: 20%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@-webkit-keyframes disappear-single {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 20%;
  }
  10% {
    width: 20%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@keyframes disappear-single {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 20%;
  }
  10% {
    width: 20%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@-moz-keyframes disappear-dual {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 10%;
  }
  10% {
    width: 10%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@-webkit-keyframes disappear-dual {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 10%;
  }
  10% {
    width: 10%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@keyframes disappear-dual {
  0% {
    -webkit-transform: scale3d(1, 1, 1);
    -moz-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    -o-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    width: 10%;
  }
  10% {
    width: 10%;
  }
  40% {
    -webkit-transform: scale3d(0.01, 0.01, 1);
    -moz-transform: scale3d(0.01, 0.01, 1);
    -ms-transform: scale3d(0.01, 0.01, 1);
    -o-transform: scale3d(0.01, 0.01, 1);
    transform: scale3d(0.01, 0.01, 1);
  }
  60% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
  }
  100% {
    -webkit-transform: scale3d(0, 0, 1);
    -moz-transform: scale3d(0, 0, 1);
    -ms-transform: scale3d(0, 0, 1);
    -o-transform: scale3d(0, 0, 1);
    transform: scale3d(0, 0, 1);
    width: 0%;
    border-width: 0;
  }
}
@-moz-keyframes leave-l {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: none;
  }
}
@-webkit-keyframes leave-l {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: none;
  }
}
@keyframes leave-l {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(100%, 0, 0);
    -moz-transform: translate3d(100%, 0, 0);
    -ms-transform: translate3d(100%, 0, 0);
    -o-transform: translate3d(100%, 0, 0);
    transform: translate3d(100%, 0, 0);
    display: none;
  }
}
@-moz-keyframes leave-r {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: none;
  }
}
@-webkit-keyframes leave-r {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: none;
  }
}
@keyframes leave-r {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    -ms-transform: translate3d(0, 0, 0);
    -o-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
  99% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: block;
  }
  100% {
    -webkit-transform: translate3d(-100%, 0, 0);
    -moz-transform: translate3d(-100%, 0, 0);
    -ms-transform: translate3d(-100%, 0, 0);
    -o-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    display: none;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .shiftingtiles > .row .single,
  .shiftingtiles > .row .dual {
    border-width: 3px;
  }
  
  .shiftingtiles > .row .dual > div {
    border-width: 6px 0 0 0;
  }
  
  .shiftingtiles > .loading {
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .shiftingtiles > .row .single,
  .shiftingtiles > .row .dual {
    border-width: 2px;
  }
  
  .shiftingtiles > .row .dual > div {
    border-width: 4px 0 0 0;
  }
  
  .shiftingtiles > .loading {
    font-size: 1rem;
  }
}

@media (max-height: 600px) {
  .shiftingtiles > .loading {
    line-height: 100vh;
    font-size: 1rem;
  }
}

/* Portrait orientation adjustments */
@media (orientation: portrait) and (max-width: 768px) {
  /* Keep original column structure */
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
  /* Keep original column structure */
}