diff --git a/css/reveal.css b/css/reveal.css
index 116d3154..52a05a74 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -59,7 +59,8 @@ html:-moz-full-screen-ancestor {
 .reveal .slides section .fragment {
   opacity: 0;
   visibility: hidden;
-  transition: all 0.2s ease; }
+  -webkit-transition: all 0.2s ease;
+          transition: all 0.2s ease; }
   .reveal .slides section .fragment.visible {
     opacity: 1;
     visibility: visible; }
@@ -68,18 +69,26 @@ html:-moz-full-screen-ancestor {
   opacity: 1;
   visibility: visible; }
   .reveal .slides section .fragment.grow.visible {
-    transform: scale(1.3); }
+    -webkit-transform: scale(1.3);
+        -ms-transform: scale(1.3);
+            transform: scale(1.3); }
 
 .reveal .slides section .fragment.shrink {
   opacity: 1;
   visibility: visible; }
   .reveal .slides section .fragment.shrink.visible {
-    transform: scale(0.7); }
+    -webkit-transform: scale(0.7);
+        -ms-transform: scale(0.7);
+            transform: scale(0.7); }
 
 .reveal .slides section .fragment.zoom-in {
-  transform: scale(0.1); }
+  -webkit-transform: scale(0.1);
+      -ms-transform: scale(0.1);
+          transform: scale(0.1); }
   .reveal .slides section .fragment.zoom-in.visible {
-    transform: none; }
+    -webkit-transform: none;
+        -ms-transform: none;
+            transform: none; }
 
 .reveal .slides section .fragment.fade-out {
   opacity: 1;
@@ -180,8 +189,11 @@ html:-moz-full-screen-ancestor {
   height: 0;
   background-color: transparent;
   border: 12px solid transparent;
-  transform: scale(0.9999);
-  transition: all 0.2s ease;
+  -webkit-transform: scale(0.9999);
+      -ms-transform: scale(0.9999);
+          transform: scale(0.9999);
+  -webkit-transition: all 0.2s ease;
+          transition: all 0.2s ease;
   -webkit-appearance: none;
   -webkit-tap-highlight-color: transparent; }
 
@@ -252,7 +264,8 @@ html:-moz-full-screen-ancestor {
   height: 100%;
   width: 0px;
   background-color: #000;
-  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
 
 /*********************************************
  * SLIDE NUMBER
@@ -274,7 +287,8 @@ html:-moz-full-screen-ancestor {
   width: 100%;
   height: 100%;
   overflow: hidden;
-  touch-action: none; }
+  -ms-touch-action: none;
+      touch-action: none; }
 
 .reveal .slides {
   position: absolute;
@@ -288,8 +302,10 @@ html:-moz-full-screen-ancestor {
   overflow: visible;
   z-index: 1;
   text-align: center;
-  perspective: 600px;
-  perspective-origin: 50% 40%; }
+  -webkit-perspective: 600px;
+          perspective: 600px;
+  -webkit-perspective-origin: 50% 40%;
+          perspective-origin: 50% 40%; }
 
 .reveal .slides > section {
   -ms-perspective: 600px; }
@@ -301,22 +317,29 @@ html:-moz-full-screen-ancestor {
   width: 100%;
   padding: 20px 0px;
   z-index: 10;
-  transform-style: preserve-3d;
-  transition: transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+  -webkit-transform-style: preserve-3d;
+          transform-style: preserve-3d;
+  -webkit-transition: -webkit-transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), -webkit-transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: -ms-transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: transform-origin 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), transform 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), visibility 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985), opacity 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
 
 /* Global transition speed settings */
 .reveal[data-transition-speed="fast"] .slides section {
-  transition-duration: 400ms; }
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
 
 .reveal[data-transition-speed="slow"] .slides section {
-  transition-duration: 1200ms; }
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
 
 /* Slide-specific transition speed overrides */
 .reveal .slides section[data-transition-speed="fast"] {
-  transition-duration: 400ms; }
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
 
 .reveal .slides section[data-transition-speed="slow"] {
-  transition-duration: 1200ms; }
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
 
 .reveal .slides > section.stack {
   padding-top: 0;
@@ -358,50 +381,68 @@ html:-moz-full-screen-ancestor {
  * Aliased 'linear' for backwards compatibility
  *********************************************/
 .reveal.slide section {
-  backface-visibility: hidden; }
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
 
 .reveal .slides > section[data-transition=slide].past,
 .reveal .slides > section[data-transition~=slide-out].past,
 .reveal.slide .slides > section:not([data-transition]).past {
-  transform: translate(-150%, 0); }
+  -webkit-transform: translate(-150%, 0);
+      -ms-transform: translate(-150%, 0);
+          transform: translate(-150%, 0); }
 
 .reveal .slides > section[data-transition=slide].future,
 .reveal .slides > section[data-transition~=slide-in].future,
 .reveal.slide .slides > section:not([data-transition]).future {
-  transform: translate(150%, 0); }
+  -webkit-transform: translate(150%, 0);
+      -ms-transform: translate(150%, 0);
+          transform: translate(150%, 0); }
 
 .reveal .slides > section > section[data-transition=slide].past,
 .reveal .slides > section > section[data-transition~=slide-out].past,
 .reveal.slide .slides > section > section:not([data-transition]).past {
-  transform: translate(0, -150%); }
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
 
 .reveal .slides > section > section[data-transition=slide].future,
 .reveal .slides > section > section[data-transition~=slide-in].future,
 .reveal.slide .slides > section > section:not([data-transition]).future {
-  transform: translate(0, 150%); }
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
 
 .reveal.linear section {
-  backface-visibility: hidden; }
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
 
 .reveal .slides > section[data-transition=linear].past,
 .reveal .slides > section[data-transition~=linear-out].past,
 .reveal.linear .slides > section:not([data-transition]).past {
-  transform: translate(-150%, 0); }
+  -webkit-transform: translate(-150%, 0);
+      -ms-transform: translate(-150%, 0);
+          transform: translate(-150%, 0); }
 
 .reveal .slides > section[data-transition=linear].future,
 .reveal .slides > section[data-transition~=linear-in].future,
 .reveal.linear .slides > section:not([data-transition]).future {
-  transform: translate(150%, 0); }
+  -webkit-transform: translate(150%, 0);
+      -ms-transform: translate(150%, 0);
+          transform: translate(150%, 0); }
 
 .reveal .slides > section > section[data-transition=linear].past,
 .reveal .slides > section > section[data-transition~=linear-out].past,
 .reveal.linear .slides > section > section:not([data-transition]).past {
-  transform: translate(0, -150%); }
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
 
 .reveal .slides > section > section[data-transition=linear].future,
 .reveal .slides > section > section[data-transition~=linear-in].future,
 .reveal.linear .slides > section > section:not([data-transition]).future {
-  transform: translate(0, 150%); }
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
 
 /*********************************************
  * CONVEX TRANSITION
@@ -410,42 +451,50 @@ html:-moz-full-screen-ancestor {
 .reveal .slides > section[data-transition=default].past,
 .reveal .slides > section[data-transition~=default-out].past,
 .reveal.default .slides > section:not([data-transition]).past {
-  transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
 
 .reveal .slides > section[data-transition=default].future,
 .reveal .slides > section[data-transition~=default-in].future,
 .reveal.default .slides > section:not([data-transition]).future {
-  transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
 
 .reveal .slides > section > section[data-transition=default].past,
 .reveal .slides > section > section[data-transition~=default-out].past,
 .reveal.default .slides > section > section:not([data-transition]).past {
-  transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
+  -webkit-transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
+          transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
 
 .reveal .slides > section > section[data-transition=default].future,
 .reveal .slides > section > section[data-transition~=default-in].future,
 .reveal.default .slides > section > section:not([data-transition]).future {
-  transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
+  -webkit-transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
+          transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
 
 .reveal .slides > section[data-transition=convex].past,
 .reveal .slides > section[data-transition~=convex-out].past,
 .reveal.convex .slides > section:not([data-transition]).past {
-  transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
 
 .reveal .slides > section[data-transition=convex].future,
 .reveal .slides > section[data-transition~=convex-in].future,
 .reveal.convex .slides > section:not([data-transition]).future {
-  transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
 
 .reveal .slides > section > section[data-transition=convex].past,
 .reveal .slides > section > section[data-transition~=convex-out].past,
 .reveal.convex .slides > section > section:not([data-transition]).past {
-  transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
+  -webkit-transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
+          transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0); }
 
 .reveal .slides > section > section[data-transition=convex].future,
 .reveal .slides > section > section[data-transition~=convex-in].future,
 .reveal.convex .slides > section > section:not([data-transition]).future {
-  transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
+  -webkit-transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
+          transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0); }
 
 /*********************************************
  * CONCAVE TRANSITION
@@ -453,62 +502,77 @@ html:-moz-full-screen-ancestor {
 .reveal .slides > section[data-transition=concave].past,
 .reveal .slides > section[data-transition~=concave-out].past,
 .reveal.concave .slides > section:not([data-transition]).past {
-  transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
 
 .reveal .slides > section[data-transition=concave].future,
 .reveal .slides > section[data-transition~=concave-in].future,
 .reveal.concave .slides > section:not([data-transition]).future {
-  transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
 
 .reveal .slides > section > section[data-transition=concave].past,
 .reveal .slides > section > section[data-transition~=concave-out].past,
 .reveal.concave .slides > section > section:not([data-transition]).past {
-  transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0); }
+  -webkit-transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0);
+          transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0); }
 
 .reveal .slides > section > section[data-transition=concave].future,
 .reveal .slides > section > section[data-transition~=concave-in].future,
 .reveal.concave .slides > section > section:not([data-transition]).future {
-  transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0); }
+  -webkit-transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
+          transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0); }
 
 /*********************************************
  * ZOOM TRANSITION
  *********************************************/
 .reveal .slides section[data-transition=zoom],
 .reveal.zoom .slides section:not([data-transition]) {
-  transition-timing-function: ease; }
+  -webkit-transition-timing-function: ease;
+          transition-timing-function: ease; }
 
 .reveal .slides > section[data-transition=zoom].past,
 .reveal .slides > section[data-transition~=zoom-out].past,
 .reveal.zoom .slides > section:not([data-transition]).past {
   visibility: hidden;
-  transform: scale(16); }
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
 
 .reveal .slides > section[data-transition=zoom].future,
 .reveal .slides > section[data-transition~=zoom-in].future,
 .reveal.zoom .slides > section:not([data-transition]).future {
   visibility: hidden;
-  transform: scale(0.2); }
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
 
 .reveal .slides > section > section[data-transition=zoom].past,
 .reveal .slides > section > section[data-transition~=zoom-out].past,
 .reveal.zoom .slides > section > section:not([data-transition]).past {
-  transform: translate(0, -150%); }
+  -webkit-transform: translate(0, -150%);
+      -ms-transform: translate(0, -150%);
+          transform: translate(0, -150%); }
 
 .reveal .slides > section > section[data-transition=zoom].future,
 .reveal .slides > section > section[data-transition~=zoom-in].future,
 .reveal.zoom .slides > section > section:not([data-transition]).future {
-  transform: translate(0, 150%); }
+  -webkit-transform: translate(0, 150%);
+      -ms-transform: translate(0, 150%);
+          transform: translate(0, 150%); }
 
 /*********************************************
  * CUBE TRANSITION
  *********************************************/
 .reveal.cube .slides {
-  perspective: 1300px; }
+  -webkit-perspective: 1300px;
+          perspective: 1300px; }
 
 .reveal.cube .slides section {
   padding: 30px;
   min-height: 700px;
-  backface-visibility: hidden;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden;
   box-sizing: border-box; }
 
 .reveal.center.cube .slides section {
@@ -524,7 +588,8 @@ html:-moz-full-screen-ancestor {
   top: 0;
   background: rgba(0, 0, 0, 0.1);
   border-radius: 4px;
-  transform: translateZ(-20px); }
+  -webkit-transform: translateZ(-20px);
+          transform: translateZ(-20px); }
 
 .reveal.cube .slides section:not(.stack):after {
   content: '';
@@ -538,34 +603,49 @@ html:-moz-full-screen-ancestor {
   z-index: 1;
   border-radius: 4px;
   box-shadow: 0px 95px 25px rgba(0, 0, 0, 0.2);
-  transform: translateZ(-90px) rotateX(65deg); }
+  -webkit-transform: translateZ(-90px) rotateX(65deg);
+          transform: translateZ(-90px) rotateX(65deg); }
 
 .reveal.cube .slides > section.stack {
   padding: 0;
   background: none; }
 
 .reveal.cube .slides > section.past {
-  transform-origin: 100% 0%;
-  transform: translate3d(-100%, 0, 0) rotateY(-90deg); }
+  -webkit-transform-origin: 100% 0%;
+      -ms-transform-origin: 100% 0%;
+          transform-origin: 100% 0%;
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg); }
 
 .reveal.cube .slides > section.future {
-  transform-origin: 0% 0%;
-  transform: translate3d(100%, 0, 0) rotateY(90deg); }
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg);
+          transform: translate3d(100%, 0, 0) rotateY(90deg); }
 
 .reveal.cube .slides > section > section.past {
-  transform-origin: 0% 100%;
-  transform: translate3d(0, -100%, 0) rotateX(90deg); }
+  -webkit-transform-origin: 0% 100%;
+      -ms-transform-origin: 0% 100%;
+          transform-origin: 0% 100%;
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(90deg);
+          transform: translate3d(0, -100%, 0) rotateX(90deg); }
 
 .reveal.cube .slides > section > section.future {
-  transform-origin: 0% 0%;
-  transform: translate3d(0, 100%, 0) rotateX(-90deg); }
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(-90deg);
+          transform: translate3d(0, 100%, 0) rotateX(-90deg); }
 
 /*********************************************
  * PAGE TRANSITION
  *********************************************/
 .reveal.page .slides {
-  perspective-origin: 0% 50%;
-  perspective: 3000px; }
+  -webkit-perspective-origin: 0% 50%;
+          perspective-origin: 0% 50%;
+  -webkit-perspective: 3000px;
+          perspective: 3000px; }
 
 .reveal.page .slides section {
   padding: 30px;
@@ -584,7 +664,8 @@ html:-moz-full-screen-ancestor {
   left: 0;
   top: 0;
   background: rgba(0, 0, 0, 0.1);
-  transform: translateZ(-20px); }
+  -webkit-transform: translateZ(-20px);
+          transform: translateZ(-20px); }
 
 .reveal.page .slides section:not(.stack):after {
   content: '';
@@ -605,20 +686,32 @@ html:-moz-full-screen-ancestor {
   background: none; }
 
 .reveal.page .slides > section.past {
-  transform-origin: 0% 0%;
-  transform: translate3d(-40%, 0, 0) rotateY(-80deg); }
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(-40%, 0, 0) rotateY(-80deg);
+          transform: translate3d(-40%, 0, 0) rotateY(-80deg); }
 
 .reveal.page .slides > section.future {
-  transform-origin: 100% 0%;
-  transform: translate3d(0, 0, 0); }
+  -webkit-transform-origin: 100% 0%;
+      -ms-transform-origin: 100% 0%;
+          transform-origin: 100% 0%;
+  -webkit-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0); }
 
 .reveal.page .slides > section > section.past {
-  transform-origin: 0% 0%;
-  transform: translate3d(0, -40%, 0) rotateX(80deg); }
+  -webkit-transform-origin: 0% 0%;
+      -ms-transform-origin: 0% 0%;
+          transform-origin: 0% 0%;
+  -webkit-transform: translate3d(0, -40%, 0) rotateX(80deg);
+          transform: translate3d(0, -40%, 0) rotateX(80deg); }
 
 .reveal.page .slides > section > section.future {
-  transform-origin: 0% 100%;
-  transform: translate3d(0, 0, 0); }
+  -webkit-transform-origin: 0% 100%;
+      -ms-transform-origin: 0% 100%;
+          transform-origin: 0% 100%;
+  -webkit-transform: translate3d(0, 0, 0);
+          transform: translate3d(0, 0, 0); }
 
 /*********************************************
  * FADE TRANSITION
@@ -626,20 +719,27 @@ html:-moz-full-screen-ancestor {
 .reveal .slides section[data-transition=fade],
 .reveal.fade .slides section:not([data-transition]),
 .reveal.fade .slides > section > section:not([data-transition]) {
-  transform: none;
-  transition: opacity 0.5s; }
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none;
+  -webkit-transition: opacity 0.5s;
+          transition: opacity 0.5s; }
 
 .reveal.fade.overview .slides section,
 .reveal.fade.overview .slides > section > section {
-  transition: none; }
+  -webkit-transition: none;
+          transition: none; }
 
 /*********************************************
  * NO TRANSITION
  *********************************************/
 .reveal .slides section[data-transition=none],
 .reveal.none .slides section:not([data-transition]) {
-  transform: none;
-  transition: none; }
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none;
+  -webkit-transition: none;
+          transition: none; }
 
 /*********************************************
  * PAUSED MODE
@@ -654,7 +754,8 @@ html:-moz-full-screen-ancestor {
   visibility: hidden;
   opacity: 0;
   z-index: 100;
-  transition: all 1s ease; }
+  -webkit-transition: all 1s ease;
+          transition: all 1s ease; }
 
 .reveal.paused .pause-overlay {
   visibility: visible;
@@ -688,14 +789,17 @@ html:-moz-full-screen-ancestor {
   top: 0;
   left: -50%;
   margin: 70px 0;
-  transform: none; }
+  -webkit-transform: none;
+      -ms-transform: none;
+          transform: none; }
 
 .no-transforms .reveal .slides section section {
   left: 0; }
 
 .reveal .no-transition,
 .reveal .no-transition * {
-  transition: none !important; }
+  -webkit-transition: none !important;
+          transition: none !important; }
 
 /*********************************************
  * PER-SLIDE BACKGROUNDS
@@ -706,7 +810,8 @@ html:-moz-full-screen-ancestor {
   height: 100%;
   top: 0;
   left: 0;
-  perspective: 600px; }
+  -webkit-perspective: 600px;
+          perspective: 600px; }
 
 .reveal .slide-background {
   display: none;
@@ -719,7 +824,8 @@ html:-moz-full-screen-ancestor {
   background-position: 50% 50%;
   background-repeat: no-repeat;
   background-size: cover;
-  transition: all 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+  -webkit-transition: all 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+          transition: all 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
 
 .reveal .slide-background.stack {
   display: block; }
@@ -745,114 +851,145 @@ html:-moz-full-screen-ancestor {
 /* Immediate transition style */
 .reveal[data-background-transition=none] > .backgrounds .slide-background,
 .reveal > .backgrounds .slide-background[data-background-transition=none] {
-  transition: none; }
+  -webkit-transition: none;
+          transition: none; }
 
 /* Slide */
 .reveal[data-background-transition=slide] > .backgrounds .slide-background,
 .reveal > .backgrounds .slide-background[data-background-transition=slide] {
   opacity: 1;
-  backface-visibility: hidden; }
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
 
 .reveal[data-background-transition=slide] > .backgrounds .slide-background.past,
 .reveal > .backgrounds .slide-background.past[data-background-transition=slide] {
-  transform: translate(-100%, 0); }
+  -webkit-transform: translate(-100%, 0);
+      -ms-transform: translate(-100%, 0);
+          transform: translate(-100%, 0); }
 
 .reveal[data-background-transition=slide] > .backgrounds .slide-background.future,
 .reveal > .backgrounds .slide-background.future[data-background-transition=slide] {
-  transform: translate(100%, 0); }
+  -webkit-transform: translate(100%, 0);
+      -ms-transform: translate(100%, 0);
+          transform: translate(100%, 0); }
 
 .reveal[data-background-transition=slide] > .backgrounds .slide-background > .slide-background.past,
 .reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=slide] {
-  transform: translate(0, -100%); }
+  -webkit-transform: translate(0, -100%);
+      -ms-transform: translate(0, -100%);
+          transform: translate(0, -100%); }
 
 .reveal[data-background-transition=slide] > .backgrounds .slide-background > .slide-background.future,
 .reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=slide] {
-  transform: translate(0, 100%); }
+  -webkit-transform: translate(0, 100%);
+      -ms-transform: translate(0, 100%);
+          transform: translate(0, 100%); }
 
 /* Convex */
 .reveal[data-background-transition=convex] > .backgrounds .slide-background.past,
 .reveal > .backgrounds .slide-background.past[data-background-transition=convex] {
   opacity: 0;
-  transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0); }
 
 .reveal[data-background-transition=convex] > .backgrounds .slide-background.future,
 .reveal > .backgrounds .slide-background.future[data-background-transition=convex] {
   opacity: 0;
-  transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0); }
 
 .reveal[data-background-transition=convex] > .backgrounds .slide-background > .slide-background.past,
 .reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=convex] {
   opacity: 0;
-  transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0); }
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0);
+          transform: translate3d(0, -100%, 0) rotateX(90deg) translate3d(0, -100%, 0); }
 
 .reveal[data-background-transition=convex] > .backgrounds .slide-background > .slide-background.future,
 .reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=convex] {
   opacity: 0;
-  transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0); }
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0);
+          transform: translate3d(0, 100%, 0) rotateX(-90deg) translate3d(0, 100%, 0); }
 
 /* Concave */
 .reveal[data-background-transition=concave] > .backgrounds .slide-background.past,
 .reveal > .backgrounds .slide-background.past[data-background-transition=concave] {
   opacity: 0;
-  transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
+  -webkit-transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
+          transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0); }
 
 .reveal[data-background-transition=concave] > .backgrounds .slide-background.future,
 .reveal > .backgrounds .slide-background.future[data-background-transition=concave] {
   opacity: 0;
-  transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
+  -webkit-transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
+          transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0); }
 
 .reveal[data-background-transition=concave] > .backgrounds .slide-background > .slide-background.past,
 .reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=concave] {
   opacity: 0;
-  transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0); }
+  -webkit-transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0);
+          transform: translate3d(0, -100%, 0) rotateX(-90deg) translate3d(0, -100%, 0); }
 
 .reveal[data-background-transition=concave] > .backgrounds .slide-background > .slide-background.future,
 .reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=concave] {
   opacity: 0;
-  transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0); }
+  -webkit-transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0);
+          transform: translate3d(0, 100%, 0) rotateX(90deg) translate3d(0, 100%, 0); }
 
 /* Zoom */
 .reveal[data-background-transition=zoom] > .backgrounds .slide-background,
 .reveal > .backgrounds .slide-background[data-background-transition=zoom] {
-  transition-timing-function: ease; }
+  -webkit-transition-timing-function: ease;
+          transition-timing-function: ease; }
 
 .reveal[data-background-transition=zoom] > .backgrounds .slide-background.past,
 .reveal > .backgrounds .slide-background.past[data-background-transition=zoom] {
   opacity: 0;
   visibility: hidden;
-  transform: scale(16); }
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
 
 .reveal[data-background-transition=zoom] > .backgrounds .slide-background.future,
 .reveal > .backgrounds .slide-background.future[data-background-transition=zoom] {
   opacity: 0;
   visibility: hidden;
-  transform: scale(0.2); }
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
 
 .reveal[data-background-transition=zoom] > .backgrounds .slide-background > .slide-background.past,
 .reveal > .backgrounds .slide-background > .slide-background.past[data-background-transition=zoom] {
   opacity: 0;
   visibility: hidden;
-  transform: scale(16); }
+  -webkit-transform: scale(16);
+      -ms-transform: scale(16);
+          transform: scale(16); }
 
 .reveal[data-background-transition=zoom] > .backgrounds .slide-background > .slide-background.future,
 .reveal > .backgrounds .slide-background > .slide-background.future[data-background-transition=zoom] {
   opacity: 0;
   visibility: hidden;
-  transform: scale(0.2); }
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
 
 /* Global transition speed settings */
 .reveal[data-transition-speed="fast"] > .backgrounds .slide-background {
-  transition-duration: 400ms; }
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
 
 .reveal[data-transition-speed="slow"] > .backgrounds .slide-background {
-  transition-duration: 1200ms; }
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
 
 /*********************************************
  * OVERVIEW
  *********************************************/
 .reveal.overview {
-  perspective-origin: 50% 50%;
-  perspective: 700px; }
+  -webkit-perspective-origin: 50% 50%;
+          perspective-origin: 50% 50%;
+  -webkit-perspective: 700px;
+          perspective: 700px; }
   .reveal.overview .slides section {
     height: 700px;
     opacity: 1 !important;
@@ -866,7 +1003,8 @@ html:-moz-full-screen-ancestor {
     outline-offset: 10px; }
   .reveal.overview .slides section .fragment {
     opacity: 1;
-    transition: none; }
+    -webkit-transition: none;
+            transition: none; }
   .reveal.overview .slides section:after,
   .reveal.overview .slides section:before {
     display: none !important; }
@@ -877,7 +1015,8 @@ html:-moz-full-screen-ancestor {
     outline: none;
     overflow: visible; }
   .reveal.overview .backgrounds {
-    perspective: inherit; }
+    -webkit-perspective: inherit;
+            perspective: inherit; }
   .reveal.overview .backgrounds .slide-background {
     opacity: 1;
     visibility: visible;
@@ -886,14 +1025,17 @@ html:-moz-full-screen-ancestor {
 
 .reveal.overview .slides section,
 .reveal.overview-deactivating .slides section {
-  transition: none; }
+  -webkit-transition: none;
+          transition: none; }
 
 .reveal.overview .backgrounds .slide-background,
 .reveal.overview-deactivating .backgrounds .slide-background {
-  transition: none; }
+  -webkit-transition: none;
+          transition: none; }
 
 .reveal.overview-animated .slides {
-  transition: transform 0.4s ease; }
+  -webkit-transition: -webkit-transform 0.4s ease;
+          transition: transform 0.4s ease; }
 
 /*********************************************
  * RTL SUPPORT
@@ -923,14 +1065,17 @@ html:-moz-full-screen-ancestor {
  * PARALLAX BACKGROUND
  *********************************************/
 .reveal.has-parallax-background .backgrounds {
-  transition: all 0.8s ease; }
+  -webkit-transition: all 0.8s ease;
+          transition: all 0.8s ease; }
 
 /* Global transition speed settings */
 .reveal.has-parallax-background[data-transition-speed="fast"] .backgrounds {
-  transition-duration: 400ms; }
+  -webkit-transition-duration: 400ms;
+          transition-duration: 400ms; }
 
 .reveal.has-parallax-background[data-transition-speed="slow"] .backgrounds {
-  transition-duration: 1200ms; }
+  -webkit-transition-duration: 1200ms;
+          transition-duration: 1200ms; }
 
 /*********************************************
  * LINK PREVIEW OVERLAY
@@ -945,7 +1090,8 @@ html:-moz-full-screen-ancestor {
   background: rgba(0, 0, 0, 0.9);
   opacity: 0;
   visibility: hidden;
-  transition: all 0.3s ease; }
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
 
 .reveal .overlay.visible {
   opacity: 1;
@@ -963,7 +1109,8 @@ html:-moz-full-screen-ancestor {
   background-image: url(data:image/gif;base64,R0lGODlhIAAgAPMAAJmZmf%2F%2F%2F6%2Bvr8nJybW1tcDAwOjo6Nvb26ioqKOjo7Ozs%2FLy8vz8%2FAAAAAAAAAAAACH%2FC05FVFNDQVBFMi4wAwEAAAAh%2FhpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh%2BQQJCgAAACwAAAAAIAAgAAAE5xDISWlhperN52JLhSSdRgwVo1ICQZRUsiwHpTJT4iowNS8vyW2icCF6k8HMMBkCEDskxTBDAZwuAkkqIfxIQyhBQBFvAQSDITM5VDW6XNE4KagNh6Bgwe60smQUB3d4Rz1ZBApnFASDd0hihh12BkE9kjAJVlycXIg7CQIFA6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YJvpJivxNaGmLHT0VnOgSYf0dZXS7APdpB309RnHOG5gDqXGLDaC457D1zZ%2FV%2FnmOM82XiHRLYKhKP1oZmADdEAAAh%2BQQJCgAAACwAAAAAIAAgAAAE6hDISWlZpOrNp1lGNRSdRpDUolIGw5RUYhhHukqFu8DsrEyqnWThGvAmhVlteBvojpTDDBUEIFwMFBRAmBkSgOrBFZogCASwBDEY%2FCZSg7GSE0gSCjQBMVG023xWBhklAnoEdhQEfyNqMIcKjhRsjEdnezB%2BA4k8gTwJhFuiW4dokXiloUepBAp5qaKpp6%2BHo7aWW54wl7obvEe0kRuoplCGepwSx2jJvqHEmGt6whJpGpfJCHmOoNHKaHx61WiSR92E4lbFoq%2BB6QDtuetcaBPnW6%2BO7wDHpIiK9SaVK5GgV543tzjgGcghAgAh%2BQQJCgAAACwAAAAAIAAgAAAE7hDISSkxpOrN5zFHNWRdhSiVoVLHspRUMoyUakyEe8PTPCATW9A14E0UvuAKMNAZKYUZCiBMuBakSQKG8G2FzUWox2AUtAQFcBKlVQoLgQReZhQlCIJesQXI5B0CBnUMOxMCenoCfTCEWBsJColTMANldx15BGs8B5wlCZ9Po6OJkwmRpnqkqnuSrayqfKmqpLajoiW5HJq7FL1Gr2mMMcKUMIiJgIemy7xZtJsTmsM4xHiKv5KMCXqfyUCJEonXPN2rAOIAmsfB3uPoAK%2B%2BG%2Bw48edZPK%2BM6hLJpQg484enXIdQFSS1u6UhksENEQAAIfkECQoAAAAsAAAAACAAIAAABOcQyEmpGKLqzWcZRVUQnZYg1aBSh2GUVEIQ2aQOE%2BG%2BcD4ntpWkZQj1JIiZIogDFFyHI0UxQwFugMSOFIPJftfVAEoZLBbcLEFhlQiqGp1Vd140AUklUN3eCA51C1EWMzMCezCBBmkxVIVHBWd3HHl9JQOIJSdSnJ0TDKChCwUJjoWMPaGqDKannasMo6WnM562R5YluZRwur0wpgqZE7NKUm%2BFNRPIhjBJxKZteWuIBMN4zRMIVIhffcgojwCF117i4nlLnY5ztRLsnOk%2BaV%2BoJY7V7m76PdkS4trKcdg0Zc0tTcKkRAAAIfkECQoAAAAsAAAAACAAIAAABO4QyEkpKqjqzScpRaVkXZWQEximw1BSCUEIlDohrft6cpKCk5xid5MNJTaAIkekKGQkWyKHkvhKsR7ARmitkAYDYRIbUQRQjWBwJRzChi9CRlBcY1UN4g0%2FVNB0AlcvcAYHRyZPdEQFYV8ccwR5HWxEJ02YmRMLnJ1xCYp0Y5idpQuhopmmC2KgojKasUQDk5BNAwwMOh2RtRq5uQuPZKGIJQIGwAwGf6I0JXMpC8C7kXWDBINFMxS4DKMAWVWAGYsAdNqW5uaRxkSKJOZKaU3tPOBZ4DuK2LATgJhkPJMgTwKCdFjyPHEnKxFCDhEAACH5BAkKAAAALAAAAAAgACAAAATzEMhJaVKp6s2nIkolIJ2WkBShpkVRWqqQrhLSEu9MZJKK9y1ZrqYK9WiClmvoUaF8gIQSNeF1Er4MNFn4SRSDARWroAIETg1iVwuHjYB1kYc1mwruwXKC9gmsJXliGxc%2BXiUCby9ydh1sOSdMkpMTBpaXBzsfhoc5l58Gm5yToAaZhaOUqjkDgCWNHAULCwOLaTmzswadEqggQwgHuQsHIoZCHQMMQgQGubVEcxOPFAcMDAYUA85eWARmfSRQCdcMe0zeP1AAygwLlJtPNAAL19DARdPzBOWSm1brJBi45soRAWQAAkrQIykShQ9wVhHCwCQCACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiRMDjI0Fd30%2FiI2UA5GSS5UDj2l6NoqgOgN4gksEBgYFf0FDqKgHnyZ9OX8HrgYHdHpcHQULXAS2qKpENRg7eAMLC7kTBaixUYFkKAzWAAnLC7FLVxLWDBLKCwaKTULgEwbLA4hJtOkSBNqITT3xEgfLpBtzE%2FjiuL04RGEBgwWhShRgQExHBAAh%2BQQJCgAAACwAAAAAIAAgAAAE7xDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfZiCqGk5dTESJeaOAlClzsJsqwiJwiqnFrb2nS9kmIcgEsjQydLiIlHehhpejaIjzh9eomSjZR%2BipslWIRLAgMDOR2DOqKogTB9pCUJBagDBXR6XB0EBkIIsaRsGGMMAxoDBgYHTKJiUYEGDAzHC9EACcUGkIgFzgwZ0QsSBcXHiQvOwgDdEwfFs0sDzt4S6BK4xYjkDOzn0unFeBzOBijIm1Dgmg5YFQwsCMjp1oJ8LyIAACH5BAkKAAAALAAAAAAgACAAAATwEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GGl6NoiPOH16iZKNlH6KmyWFOggHhEEvAwwMA0N9GBsEC6amhnVcEwavDAazGwIDaH1ipaYLBUTCGgQDA8NdHz0FpqgTBwsLqAbWAAnIA4FWKdMLGdYGEgraigbT0OITBcg5QwPT4xLrROZL6AuQAPUS7bxLpoWidY0JtxLHKhwwMJBTHgPKdEQAACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GAULDJCRiXo1CpGXDJOUjY%2BYip9DhToJA4RBLwMLCwVDfRgbBAaqqoZ1XBMHswsHtxtFaH1iqaoGNgAIxRpbFAgfPQSqpbgGBqUD1wBXeCYp1AYZ19JJOYgH1KwA4UBvQwXUBxPqVD9L3sbp2BNk2xvvFPJd%2BMFCN6HAAIKgNggY0KtEBAAh%2BQQJCgAAACwAAAAAIAAgAAAE6BDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfYIDMaAFdTESJeaEDAIMxYFqrOUaNW4E4ObYcCXaiBVEgULe0NJaxxtYksjh2NLkZISgDgJhHthkpU4mW6blRiYmZOlh4JWkDqILwUGBnE6TYEbCgevr0N1gH4At7gHiRpFaLNrrq8HNgAJA70AWxQIH1%2BvsYMDAzZQPC9VCNkDWUhGkuE5PxJNwiUK4UfLzOlD4WvzAHaoG9nxPi5d%2BjYUqfAhhykOFwJWiAAAIfkECQoAAAAsAAAAACAAIAAABPAQyElpUqnqzaciSoVkXVUMFaFSwlpOCcMYlErAavhOMnNLNo8KsZsMZItJEIDIFSkLGQoQTNhIsFehRww2CQLKF0tYGKYSg%2BygsZIuNqJksKgbfgIGepNo2cIUB3V1B3IvNiBYNQaDSTtfhhx0CwVPI0UJe0%2Bbm4g5VgcGoqOcnjmjqDSdnhgEoamcsZuXO1aWQy8KAwOAuTYYGwi7w5h%2BKr0SJ8MFihpNbx%2B4Erq7BYBuzsdiH1jCAzoSfl0rVirNbRXlBBlLX%2BBP0XJLAPGzTkAuAOqb0WT5AH7OcdCm5B8TgRwSRKIHQtaLCwg1RAAAOwAAAAAAAAAAAA%3D%3D);
   visibility: visible;
   opacity: 0.6;
-  transition: all 0.3s ease; }
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
 
 .reveal .overlay header {
   position: absolute;
@@ -1015,7 +1162,8 @@ html:-moz-full-screen-ancestor {
   border: 0;
   opacity: 0;
   visibility: hidden;
-  transition: all 0.3s ease; }
+  -webkit-transition: all 0.3s ease;
+          transition: all 0.3s ease; }
 
 .reveal .overlay.overlay-preview.loaded .viewport iframe {
   opacity: 1;
@@ -1024,7 +1172,9 @@ html:-moz-full-screen-ancestor {
 .reveal .overlay.overlay-preview.loaded .spinner {
   opacity: 0;
   visibility: hidden;
-  transform: scale(0.2); }
+  -webkit-transform: scale(0.2);
+      -ms-transform: scale(0.2);
+          transform: scale(0.2); }
 
 .reveal .overlay.overlay-help .viewport {
   overflow: auto;
@@ -1065,7 +1215,8 @@ html:-moz-full-screen-ancestor {
   bottom: 20px;
   z-index: 30;
   cursor: pointer;
-  transition: all 400ms ease; }
+  -webkit-transition: all 400ms ease;
+          transition: all 400ms ease; }
 
 .reveal.overview .playback {
   opacity: 0;
@@ -1079,8 +1230,10 @@ html:-moz-full-screen-ancestor {
   line-height: 1.2;
   overflow: hidden;
   vertical-align: top;
-  perspective: 400px;
-  perspective-origin: 50% 50%; }
+  -webkit-perspective: 400px;
+          perspective: 400px;
+  -webkit-perspective-origin: 50% 50%;
+          perspective-origin: 50% 50%; }
 
 .reveal .roll:hover {
   background: none;
@@ -1091,14 +1244,20 @@ html:-moz-full-screen-ancestor {
   position: relative;
   padding: 0 2px;
   pointer-events: none;
-  transition: all 400ms ease;
-  transform-origin: 50% 0%;
-  transform-style: preserve-3d;
-  backface-visibility: hidden; }
+  -webkit-transition: all 400ms ease;
+          transition: all 400ms ease;
+  -webkit-transform-origin: 50% 0%;
+      -ms-transform-origin: 50% 0%;
+          transform-origin: 50% 0%;
+  -webkit-transform-style: preserve-3d;
+          transform-style: preserve-3d;
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden; }
 
 .reveal .roll:hover span {
   background: rgba(0, 0, 0, 0.5);
-  transform: translate3d(0px, 0px, -45px) rotateX(90deg); }
+  -webkit-transform: translate3d(0px, 0px, -45px) rotateX(90deg);
+          transform: translate3d(0px, 0px, -45px) rotateX(90deg); }
 
 .reveal .roll span:after {
   content: attr(data-title);
@@ -1107,9 +1266,13 @@ html:-moz-full-screen-ancestor {
   left: 0;
   top: 0;
   padding: 0 2px;
-  backface-visibility: hidden;
-  transform-origin: 50% 0%;
-  transform: translate3d(0px, 110%, 0px) rotateX(-90deg); }
+  -webkit-backface-visibility: hidden;
+          backface-visibility: hidden;
+  -webkit-transform-origin: 50% 0%;
+      -ms-transform-origin: 50% 0%;
+          transform-origin: 50% 0%;
+  -webkit-transform: translate3d(0px, 110%, 0px) rotateX(-90deg);
+          transform: translate3d(0px, 110%, 0px) rotateX(-90deg); }
 
 /*********************************************
  * SPEAKER NOTES
@@ -1154,7 +1317,8 @@ html:-moz-full-screen-ancestor {
 .zoomed .reveal *,
 .zoomed .reveal *:before,
 .zoomed .reveal *:after {
-  backface-visibility: visible !important; }
+  -webkit-backface-visibility: visible !important;
+          backface-visibility: visible !important; }
 
 .zoomed .reveal .progress,
 .zoomed .reveal .controls {