body, html, #flex-container, .slides {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
html {
  overflow: scroll;
}
#flex-container {
  display: -webkit-box;
  display: -moz-box;
  display: box;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  box-pack: center;
  -webkit-box-align: center;
  -moz-box-align: center;
  box-align: center;
  min-height: 704px;
  min-width: 904px;
}
body {
  overflow: hidden;
  -webkit-perspective: 1000px;
  -moz-perspective: 1000px;
  background: #778;
  min-height: 704px;
  min-width: 904px;
}
.slides {
  position: relative;
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  z-index: 8;
  width: 900px;
  height: 700px;
}
.presentation {
  position: absolute;
  height: 100%;
  width: 100%;
  left: 0;
  top: 0;
  display: block;
  overflow: hidden;
  background: #778;
}
.slides-old {
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  position: absolute;
  display: none;
}
.slide {
  width: 900px;
  height: 700px;
  background: #fff;
  -webkit-transition: -webkit-transform 0.8s ease-in-out, opacity 1.2s ease-in-out;
  -moz-transition: -moz-transform 0.8s ease-in-out, opacity 1.2s ease-in-out;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  box-orient: vertical;
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  overflow: hidden;
  display: none;
  position: absolute;
  border-radius: 10px;
  background-color: #eee;
}
.slide p, .slide textarea {
  font-size: 20px;
}
.slide .counter {
  color: #999999;
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: block;
  font-size: 12px;
  width: 100%;
}
.slide:not(.transitionSlide) .counter:after {
  content: '';
  width: 32px;
  height: 32px;
  background-repeat: no-repeat;
  background-position: right bottom;
  position: absolute;
  bottom: 0;
  right: 45px;
  opacity: 0.25;
}
.slide.transitionSlide h2 {
  margin: 0;
  font-size: 40px;
  line-height: 10px;
}
.slide.transitionSlide p {
  margin: 0;
}
.slide.transitionSlide img {
  opacity: 0.25;
  width: 64px;
  height: 64px;
}
#presentation-counter {
  color: #ccc;
  font-size: 100px;
  letter-spacing: 1px;
  position: absolute;
  top: 40%;
  left: 0;
  width: 100%;
  text-align: center;
}
.offline-storage .counter:after {
  background-image: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Offline_Storage_32.png);
}
.device-access .counter:after {
  background-image: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Device_Access_32.png);
}
.realtime-communication .counter:after {
  background-image: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Connectivity_32.png);
}
.performance .counter:after {
  background-image: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Performance_32.png);
}
.semantics .counter:after {
  background-image: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Semantics_32.png);
}
.multimedia .counter:after {
  background: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_MultiMedia_32.png);
}
.effects .counter:after {
  background: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_3D_Effects_32.png);
}
.styling .counter:after {
  background: url(http://www.html5rocks.com/static/images/identity/classes_32/HTML5_Styling_32.png);
}
.slide.far-past {
  z-index: 8;
  display: block;
  opacity: 0;
  -webkit-transform: translateZ(-600px) rotateY(-180deg) translateZ(600px);
  -moz-transform: translateZ(-600px) rotateY(-180deg) translateZ(600px);
  -o-transform: translateZ(-600px) rotateY(-180deg) translateZ(600px);
  transform: translateZ(-600px) rotateY(-180deg) translateZ(600px);
}
.slide.past {
  z-index: 8;
  visibility: visible;
  display: block;
  opacity: 0;
  -webkit-transform: translateZ(-600px) rotateY(-90deg) translateZ(600px);
  -moz-transform: translateZ(-600px) rotateY(-90deg) translateZ(600px);
  -o-transform: translateZ(-600px) rotateY(-90deg) translateZ(600px);
  transform: translateZ(-600px) rotateY(-90deg) translateZ(600px);
}
.slide.current {
  z-index: 9;
  visibility: visible;
  display: block;
  opacity: 1;
  -webkit-transform: translateZ(-600px) rotateY(0deg) translateZ(600px);
  -moz-transform: translateZ(-600px) rotateY(0deg) translateZ(600px);
  -o-transform: translateZ(-600px) rotateY(0deg) translateZ(600px);
  transform: translateZ(-600px) rotateY(0deg) translateZ(600px);
}
.slide.future {
  z-index: 8;
  visibility: visible;
  display: block;
  opacity: 0;
  -webkit-transform: translateZ(-600px) rotateY(90deg) translateZ(600px);
  -moz-transform: translateZ(-600px) rotateY(90deg) translateZ(600px);
  -o-transform: translateZ(-600px) rotateY(90deg) translateZ(600px);
  transform: translateZ(-600px) rotateY(90deg) translateZ(600px);
}
.slide.far-future {
  z-index: 8;
  display: block;
  opacity: 0;
  -webkit-transform: translateZ(-600px) rotateY(180deg) translateZ(600px);
  -moz-transform: translateZ(-600px) rotateY(180deg) translateZ(600px);
  -o-transform: translateZ(-600px) rotateY(180deg) translateZ(600px);
  transform: translateZ(-600px) rotateY(180deg) translateZ(600px);
}
body.three-d {
}
body.three-d .slides {
  -webkit-transform: translateX(50px) scale(0.8) rotateY(10deg);
  -moz-transform: translateX(50px) scale(0.8) rotateY(10deg);
  -o-transform: translateX(50px) scale(0.8) rotateY(10deg);
  transform: translateX(50px) scale(0.8) rotateY(10deg);
}
body.three-d .presentation {
  -webkit-tranform-style: preserve-3d;
  -webkit-perspective: 1000px;
  -moz-perspective: 1000px;
}