merged dev branch

1 files changed, 305 insertions, 372 deletions

diff --git a/css/reveal.css b/css/reveal.css
index f60ac58..9efa9be 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -18,7 +18,7 @@ html, body, .reveal div, .reveal span, .reveal applet, .reveal object, .reveal i
 .reveal a, .reveal abbr, .reveal acronym, .reveal address, .reveal big, .reveal cite, .reveal code,
 .reveal del, .reveal dfn, .reveal em, .reveal img, .reveal ins, .reveal kbd, .reveal q, .reveal s, .reveal samp,
 .reveal small, .reveal strike, .reveal strong, .reveal sub, .reveal sup, .reveal tt, .reveal var,
-.reveal b, .reveal u, .reveal i, .reveal center,
+.reveal b, .reveal u, .reveal center,
 .reveal dl, .reveal dt, .reveal dd, .reveal ol, .reveal ul, .reveal li,
 .reveal fieldset, .reveal form, .reveal label, .reveal legend,
 .reveal table, .reveal caption, .reveal tbody, .reveal tfoot, .reveal thead, .reveal tr, .reveal th, .reveal td,
@@ -54,6 +54,9 @@ body {
 body {
 	position: relative;
 	line-height: 1;
+
+	background-color: #fff;
+	color: #000;
 }
 
 ::-moz-selection {
@@ -70,45 +73,23 @@ body {
 
 
 /*********************************************
- * HEADERS
- *********************************************/
-
-.reveal h1,
-.reveal h2,
-.reveal h3,
-.reveal h4,
-.reveal h5,
-.reveal h6 {
-	-webkit-hyphens: auto;
-	   -moz-hyphens: auto;
-	    -ms-hyphens: auto;
-	        hyphens: auto;
-
-	word-wrap: break-word;
-	line-height: 1;
-}
-
-.reveal h1 { font-size: 3.77em; }
-.reveal h2 { font-size: 2.11em;	}
-.reveal h3 { font-size: 1.55em;	}
-.reveal h4 { font-size: 1em;	}
-
-
-/*********************************************
  * VIEW FRAGMENTS
  *********************************************/
 
 .reveal .slides section .fragment {
 	opacity: 0;
+	visibility: hidden;
 	-webkit-transition: all .2s ease;
 	        transition: all .2s ease;
 }
 	.reveal .slides section .fragment.visible {
 		opacity: 1;
+		visibility: visible;
 	}
 
 .reveal .slides section .fragment.grow {
 	opacity: 1;
+	visibility: visible;
 }
 	.reveal .slides section .fragment.grow.visible {
 		-webkit-transform: scale( 1.3 );
@@ -118,6 +99,7 @@ body {
 
 .reveal .slides section .fragment.shrink {
 	opacity: 1;
+	visibility: visible;
 }
 	.reveal .slides section .fragment.shrink.visible {
 		-webkit-transform: scale( 0.7 );
@@ -126,51 +108,52 @@ body {
 	}
 
 .reveal .slides section .fragment.zoom-in {
-	opacity: 0;
 	-webkit-transform: scale( 0.1 );
 	    -ms-transform: scale( 0.1 );
 	        transform: scale( 0.1 );
 }
 
 	.reveal .slides section .fragment.zoom-in.visible {
-		opacity: 1;
 		-webkit-transform: scale( 1 );
 		    -ms-transform: scale( 1 );
 		        transform: scale( 1 );
 	}
 
 .reveal .slides section .fragment.roll-in {
-	opacity: 0;
 	-webkit-transform: rotateX( 90deg );
 	        transform: rotateX( 90deg );
 }
 	.reveal .slides section .fragment.roll-in.visible {
-		opacity: 1;
 		-webkit-transform: rotateX( 0 );
 		        transform: rotateX( 0 );
 	}
 
 .reveal .slides section .fragment.fade-out {
 	opacity: 1;
+	visibility: visible;
 }
 	.reveal .slides section .fragment.fade-out.visible {
 		opacity: 0;
+		visibility: hidden;
 	}
 
 .reveal .slides section .fragment.semi-fade-out {
 	opacity: 1;
+	visibility: visible;
 }
 	.reveal .slides section .fragment.semi-fade-out.visible {
 		opacity: 0.5;
+		visibility: visible;
 	}
 
 .reveal .slides section .fragment.current-visible {
-	opacity:0;
-}
-
-.reveal .slides section .fragment.current-visible.current-fragment {
-	opacity:1;
+	opacity: 0;
+	visibility: hidden;
 }
+	.reveal .slides section .fragment.current-visible.current-fragment {
+		opacity: 1;
+		visibility: visible;
+	}
 
 .reveal .slides section .fragment.highlight-red,
 .reveal .slides section .fragment.highlight-current-red,
@@ -179,6 +162,7 @@ body {
 .reveal .slides section .fragment.highlight-blue,
 .reveal .slides section .fragment.highlight-current-blue {
 	opacity: 1;
+	visibility: visible;
 }
 	.reveal .slides section .fragment.highlight-red.visible {
 		color: #ff2c2d
@@ -200,6 +184,13 @@ body {
 	color: #1b91ff;
 }
 
+.reveal .slides section .fragment.strike {
+	opacity: 1;
+}
+	.reveal .slides section .fragment.strike.visible {
+		text-decoration: line-through;
+	}
+
 
 /*********************************************
  * DEFAULT ELEMENT STYLES
@@ -215,115 +206,16 @@ body {
 	z-index: 1;
 }
 
-/* Ensure certain elements are never larger than the slide itself */
-.reveal img,
-.reveal video,
-.reveal iframe {
-	max-width: 95%;
-	max-height: 95%;
-}
-
 /** Prevents layering issues in certain browser/transition combinations */
 .reveal a {
 	position: relative;
 }
 
-.reveal strong,
-.reveal b {
-	font-weight: bold;
-}
-
-.reveal em,
-.reveal i {
-	font-style: italic;
-}
-
-.reveal ol,
-.reveal ul {
-	display: inline-block;
-
-	text-align: left;
-	margin: 0 0 0 1em;
-}
-
-.reveal ol {
-	list-style-type: decimal;
-}
-
-.reveal ul {
-	list-style-type: disc;
-}
-
-.reveal ul ul {
-	list-style-type: square;
-}
-
-.reveal ul ul ul {
-	list-style-type: circle;
-}
-
-.reveal ul ul,
-.reveal ul ol,
-.reveal ol ol,
-.reveal ol ul {
-	display: block;
-	margin-left: 40px;
-}
-
-.reveal p {
-	margin-bottom: 10px;
-	line-height: 1.2em;
-}
-
-.reveal q,
-.reveal blockquote {
-	quotes: none;
-}
-
-.reveal blockquote {
-	display: block;
-	position: relative;
-	width: 70%;
-	margin: 5px auto;
-	padding: 5px;
-
-	font-style: italic;
-	background: rgba(255, 255, 255, 0.05);
-	box-shadow: 0px 0px 2px rgba(0,0,0,0.2);
-}
-	.reveal blockquote p:first-child,
-	.reveal blockquote p:last-child {
-		display: inline-block;
-	}
-
-.reveal q {
-	font-style: italic;
+.reveal .stretch {
+	max-width: none;
+	max-height: none;
 }
 
-.reveal pre {
-	display: block;
-	position: relative;
-	width: 90%;
-	margin: 15px auto;
-
-	text-align: left;
-	font-size: 0.55em;
-	font-family: monospace;
-	line-height: 1.2em;
-
-	word-wrap: break-word;
-
-	box-shadow: 0px 0px 6px rgba(0,0,0,0.3);
-}
-.reveal code {
-	font-family: monospace;
-}
-.reveal pre code {
-	padding: 5px;
-	overflow: auto;
-	max-height: 400px;
-	word-wrap: normal;
-}
 .reveal pre.stretch code {
 	height: 100%;
 	max-height: 100%;
@@ -331,39 +223,6 @@ body {
 	     box-sizing: border-box;
 }
 
-.reveal table th,
-.reveal table td {
-	text-align: left;
-	padding-right: .3em;
-}
-
-.reveal table th {
-	font-weight: bold;
-}
-
-.reveal sup {
-	vertical-align: super;
-}
-.reveal sub {
-	vertical-align: sub;
-}
-
-.reveal small {
-	display: inline-block;
-	font-size: 0.6em;
-	line-height: 1.2em;
-	vertical-align: top;
-}
-
-.reveal small * {
-	vertical-align: top;
-}
-
-.reveal .stretch {
-	max-width: none;
-	max-height: none;
-}
-
 
 /*********************************************
  * CONTROLS
@@ -377,6 +236,8 @@ body {
 	z-index: 30;
 	right: 10px;
 	bottom: 10px;
+
+	-webkit-user-select: none;
 }
 
 .reveal .controls div {
@@ -387,6 +248,7 @@ body {
 	border: 12px solid transparent;
 
 	-moz-transform: scale(.9999);
+	-webkit-tap-highlight-color: rgba( 0, 0, 0, 0 );
 	-webkit-transition: all 0.2s ease;
 	        transition: all 0.2s ease;
 }
@@ -404,7 +266,7 @@ body {
 		top: 42px;
 
 		border-right-width: 22px;
-		border-right-color: #eee;
+		border-right-color: #000;
 	}
 		.reveal .controls div.navigate-left.fragmented {
 			opacity: 0.3;
@@ -415,7 +277,7 @@ body {
 		top: 42px;
 
 		border-left-width: 22px;
-		border-left-color: #eee;
+		border-left-color: #000;
 	}
 		.reveal .controls div.navigate-right.fragmented {
 			opacity: 0.3;
@@ -425,7 +287,7 @@ body {
 		left: 42px;
 
 		border-bottom-width: 22px;
-		border-bottom-color: #eee;
+		border-bottom-color: #000;
 	}
 		.reveal .controls div.navigate-up.fragmented {
 			opacity: 0.3;
@@ -436,7 +298,7 @@ body {
 		top: 74px;
 
 		border-top-width: 22px;
-		border-top-color: #eee;
+		border-top-color: #000;
 	}
 		.reveal .controls div.navigate-down.fragmented {
 			opacity: 0.3;
@@ -455,10 +317,12 @@ body {
 	bottom: 0;
 	left: 0;
 	z-index: 10;
+
+	background-color: rgba( 0, 0, 0, 0.2 );
 }
 	.reveal .progress:after {
 		content: '';
-		display: 'block';
+		display: block;
 		position: absolute;
 		height: 20px;
 		width: 100%;
@@ -468,6 +332,8 @@ body {
 		display: block;
 		height: 100%;
 		width: 0px;
+
+		background-color: #000;
 		-webkit-transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
 		        transition: width 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
 	}
@@ -494,16 +360,19 @@ body {
 	position: relative;
 	width: 100%;
 	height: 100%;
-
 	-ms-touch-action: none;
+	    touch-action: none;
 }
 
 .reveal .slides {
 	position: absolute;
 	width: 100%;
 	height: 100%;
-	left: 50%;
-	top: 50%;
+	top: 0;
+	right: 0;
+	bottom: 0;
+	left: 0;
+	margin: auto;
 
 	overflow: visible;
 	z-index: 1;
@@ -513,9 +382,9 @@ body {
 	-ms-perspective: 600px;
 	    -webkit-perspective: 600px;
 	        perspective: 600px;
-	-ms-perspective-origin: 0px -100px;
-	    -webkit-perspective-origin: 0px -100px;
-	        perspective-origin: 0px -100px;
+	-ms-perspective-origin: 50% 40%;
+	    -webkit-perspective-origin: 50% 40%;
+	        perspective-origin: 50% 40%;
 }
 
 .reveal .slides>section {
@@ -530,8 +399,6 @@ body {
 	padding: 20px 0px;
 
 	z-index: 10;
-	line-height: 1.2em;
-	font-weight: inherit;
 	-ms-transform-style: preserve-3d;
 	    -webkit-transform-style: preserve-3d;
 	        transform-style: preserve-3d;
@@ -569,11 +436,6 @@ body {
 	        transition-duration: 1200ms;
 }
 
-.reveal .slides>section {
-	left: -50%;
-	top: -50%;
-}
-
 .reveal .slides>section.stack {
 	padding-top: 0;
 	padding-bottom: 0;
@@ -605,38 +467,92 @@ body {
 	pointer-events: auto;
 }
 
+.reveal .slides>section.past,
+.reveal .slides>section.future,
+.reveal .slides>section>section.past,
+.reveal .slides>section>section.future {
+	opacity: 0;
+}
 
 
 /*********************************************
- * DEFAULT TRANSITION
+ * SLIDE TRANSITION
+ * Aliased 'linear' for backwards compatibility
+ *********************************************/
+
+.reveal.slide section,
+.reveal.linear section {
+	-ms-backface-visibility: hidden;
+	    -webkit-backface-visibility: hidden;
+	        backface-visibility: hidden;
+}
+
+.reveal .slides>section[data-transition=slide].past,
+.reveal.slide .slides>section:not([data-transition]).past,
+.reveal .slides>section[data-transition=linear].past,
+.reveal.linear .slides>section:not([data-transition]).past {
+	-webkit-transform: translate(-150%, 0);
+	    -ms-transform: translate(-150%, 0);
+	        transform: translate(-150%, 0);
+}
+.reveal .slides>section[data-transition=slide].future,
+.reveal.slide .slides>section:not([data-transition]).future,
+.reveal .slides>section[data-transition=linear].future,
+.reveal.linear .slides>section:not([data-transition]).future {
+	-webkit-transform: translate(150%, 0);
+	    -ms-transform: translate(150%, 0);
+	        transform: translate(150%, 0);
+}
+
+.reveal .slides>section>section[data-transition=slide].past,
+.reveal.slide .slides>section>section:not([data-transition]).past,
+.reveal .slides>section>section[data-transition=linear].past,
+.reveal.linear .slides>section>section:not([data-transition]).past {
+	-webkit-transform: translate(0, -150%);
+	    -ms-transform: translate(0, -150%);
+	        transform: translate(0, -150%);
+}
+.reveal .slides>section>section[data-transition=slide].future,
+.reveal.slide .slides>section>section:not([data-transition]).future,
+.reveal .slides>section>section[data-transition=linear].future,
+.reveal.linear .slides>section>section:not([data-transition]).future {
+	-webkit-transform: translate(0, 150%);
+	    -ms-transform: translate(0, 150%);
+	        transform: translate(0, 150%);
+}
+
+
+/*********************************************
+ * CONVEX TRANSITION
+ * Aliased 'default' for backwards compatibility
  *********************************************/
 
 .reveal .slides>section[data-transition=default].past,
-.reveal .slides>section.past {
-	display: block;
-	opacity: 0;
+.reveal.default .slides>section:not([data-transition]).past,
+.reveal .slides>section[data-transition=convex].past,
+.reveal.convex .slides>section:not([data-transition]).past {
 	-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.future {
-	display: block;
-	opacity: 0;
+.reveal.default .slides>section:not([data-transition]).future,
+.reveal .slides>section[data-transition=convex].future,
+.reveal.convex .slides>section:not([data-transition]).future {
 	-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.past {
-	display: block;
-	opacity: 0;
+.reveal.default .slides>section>section:not([data-transition]).past,
+.reveal .slides>section>section[data-transition=convex].past,
+.reveal.convex .slides>section>section:not([data-transition]).past {
 	-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.future {
-	display: block;
-	opacity: 0;
+.reveal.default .slides>section>section:not([data-transition]).future,
+.reveal .slides>section>section[data-transition=convex].future,
+.reveal.convex .slides>section>section:not([data-transition]).future {
 	-webkit-transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
 	        transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
 }
@@ -647,23 +563,23 @@ body {
  *********************************************/
 
 .reveal .slides>section[data-transition=concave].past,
-.reveal.concave  .slides>section.past {
+.reveal.concave .slides>section:not([data-transition]).past {
 	-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.concave .slides>section.future {
+.reveal.concave .slides>section:not([data-transition]).future {
 	-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.concave .slides>section>section.past {
+.reveal.concave .slides>section>section:not([data-transition]).past {
 	-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.concave .slides>section>section.future {
+.reveal.concave .slides>section>section:not([data-transition]).future {
 	-webkit-transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
 	        transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
 }
@@ -674,22 +590,20 @@ body {
  *********************************************/
 
 .reveal .slides>section[data-transition=zoom],
-.reveal.zoom .slides>section {
+.reveal.zoom .slides>section:not([data-transition]) {
 	-webkit-transition-timing-function: ease;
 	        transition-timing-function: ease;
 }
 
 .reveal .slides>section[data-transition=zoom].past,
-.reveal.zoom .slides>section.past {
-	opacity: 0;
+.reveal.zoom .slides>section:not([data-transition]).past {
 	visibility: hidden;
 	-webkit-transform: scale(16);
 	    -ms-transform: scale(16);
 	        transform: scale(16);
 }
 .reveal .slides>section[data-transition=zoom].future,
-.reveal.zoom .slides>section.future {
-	opacity: 0;
+.reveal.zoom .slides>section:not([data-transition]).future {
 	visibility: hidden;
 	-webkit-transform: scale(0.2);
 	    -ms-transform: scale(0.2);
@@ -697,50 +611,13 @@ body {
 }
 
 .reveal .slides>section>section[data-transition=zoom].past,
-.reveal.zoom .slides>section>section.past {
+.reveal.zoom .slides>section>section:not([data-transition]).past {
 	-webkit-transform: translate(0, -150%);
 	    -ms-transform: translate(0, -150%);
 	        transform: translate(0, -150%);
 }
 .reveal .slides>section>section[data-transition=zoom].future,
-.reveal.zoom .slides>section>section.future {
-	-webkit-transform: translate(0, 150%);
-	    -ms-transform: translate(0, 150%);
-	        transform: translate(0, 150%);
-}
-
-
-/*********************************************
- * LINEAR TRANSITION
- *********************************************/
-
-.reveal.linear section {
-	-ms-backface-visibility: hidden;
-	    -webkit-backface-visibility: hidden;
-	        backface-visibility: hidden;
-}
-
-.reveal .slides>section[data-transition=linear].past,
-.reveal.linear .slides>section.past {
-	-webkit-transform: translate(-150%, 0);
-	    -ms-transform: translate(-150%, 0);
-	        transform: translate(-150%, 0);
-}
-.reveal .slides>section[data-transition=linear].future,
-.reveal.linear .slides>section.future {
-	-webkit-transform: translate(150%, 0);
-	    -ms-transform: translate(150%, 0);
-	        transform: translate(150%, 0);
-}
-
-.reveal .slides>section>section[data-transition=linear].past,
-.reveal.linear .slides>section>section.past {
-	-webkit-transform: translate(0, -150%);
-	    -ms-transform: translate(0, -150%);
-	        transform: translate(0, -150%);
-}
-.reveal .slides>section>section[data-transition=linear].future,
-.reveal.linear .slides>section>section.future {
+.reveal.zoom .slides>section>section:not([data-transition]).future {
 	-webkit-transform: translate(0, 150%);
 	    -ms-transform: translate(0, 150%);
 	        transform: translate(0, 150%);
@@ -931,8 +808,8 @@ body {
  *********************************************/
 
 .reveal .slides section[data-transition=fade],
-.reveal.fade .slides section,
-.reveal.fade .slides>section>section {
+.reveal.fade .slides section:not([data-transition]),
+.reveal.fade .slides>section>section:not([data-transition]) {
 	   -webkit-transform: none;
 	       -ms-transform: none;
 	           transform: none;
@@ -942,9 +819,7 @@ body {
 
 
 .reveal.fade.overview .slides section,
-.reveal.fade.overview .slides>section>section,
-.reveal.fade.overview-deactivating .slides section,
-.reveal.fade.overview-deactivating .slides>section>section {
+.reveal.fade.overview .slides>section>section {
 	-webkit-transition: none;
 	        transition: none;
 }
@@ -955,7 +830,7 @@ body {
  *********************************************/
 
 .reveal .slides section[data-transition=none],
-.reveal.none .slides section {
+.reveal.none .slides section:not([data-transition]) {
 	-webkit-transform: none;
 	    -ms-transform: none;
 	        transform: none;
@@ -969,22 +844,28 @@ body {
  *********************************************/
 
 .reveal.overview .slides {
-	-ms-perspective-origin: 0% 0%;
-	    -webkit-perspective-origin: 0% 0%;
-	        perspective-origin: 0% 0%;
+	-ms-perspective-origin: 50% 50%;
+	    -webkit-perspective-origin: 50% 50%;
+	        perspective-origin: 50% 50%;
 	-ms-perspective: 700px;
 	    -webkit-perspective: 700px;
 	        perspective: 700px;
 }
 
 .reveal.overview .slides section {
-	height: 600px;
-	top: -300px !important;
+	height: 700px;
 	overflow: hidden;
 	opacity: 1 !important;
 	visibility: visible !important;
 	cursor: pointer;
 	background: rgba(0,0,0,0.1);
+	-moz-box-sizing: border-box;
+	     box-sizing: border-box;
+}
+.reveal.overview .slides section,
+.reveal.overview-deactivating .slides section {
+	-webkit-transition: none !important;
+	        transition: none !important;
 }
 .reveal.overview .slides section .fragment {
 	opacity: 1;
@@ -1131,11 +1012,14 @@ body {
 	position: absolute;
 	width: 100%;
 	height: 100%;
+	top: 0;
+	left: 0;
 	-ms-perspective: 600px;
 	    -webkit-perspective: 600px;
 	        perspective: 600px;
 }
 	.reveal .slide-background {
+		display: none;
 		position: absolute;
 		width: 100%;
 		height: 100%;
@@ -1149,6 +1033,11 @@ body {
 		-webkit-transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
 		        transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
 	}
+
+	.reveal .slide-background.stack {
+		display: block;
+	}
+
 	.reveal .slide-background.present {
 		opacity: 1;
 		visibility: visible;
@@ -1159,6 +1048,17 @@ body {
 		visibility: visible !important;
 	}
 
+/* Video backgrounds */
+.reveal .slide-background video {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+	max-width: none;
+	max-height: none;
+	top: 0;
+	left: 0;
+}
+
 /* Immediate transition style */
 .reveal[data-background-transition=none]>.backgrounds .slide-background,
 .reveal>.backgrounds .slide-background[data-background-transition=none] {
@@ -1166,7 +1066,7 @@ body {
 	        transition: none;
 }
 
-/* 2D slide */
+/* Slide */
 .reveal[data-background-transition=slide]>.backgrounds .slide-background,
 .reveal>.backgrounds .slide-background[data-background-transition=slide] {
 	opacity: 1;
@@ -1362,114 +1262,150 @@ body {
  * LINK PREVIEW OVERLAY
  *********************************************/
 
- .reveal .preview-link-overlay {
- 	position: absolute;
- 	top: 0;
- 	left: 0;
- 	width: 100%;
- 	height: 100%;
- 	z-index: 1000;
- 	background: rgba( 0, 0, 0, 0.9 );
- 	opacity: 0;
- 	visibility: hidden;
- 	-webkit-transition: all 0.3s ease;
- 	        transition: all 0.3s ease;
- }
- 	.reveal .preview-link-overlay.visible {
- 		opacity: 1;
- 		visibility: visible;
- 	}
-
- 	.reveal .preview-link-overlay .spinner {
- 		position: absolute;
- 		display: block;
- 		top: 50%;
- 		left: 50%;
- 		width: 32px;
- 		height: 32px;
- 		margin: -16px 0 0 -16px;
- 		z-index: 10;
- 		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;
- 		-webkit-transition: all 0.3s ease;
- 		        transition: all 0.3s ease;
- 	}
-
- 	.reveal .preview-link-overlay header {
- 		position: absolute;
- 		left: 0;
- 		top: 0;
- 		width: 100%;
- 		height: 40px;
- 		z-index: 2;
- 		border-bottom: 1px solid #222;
- 	}
- 		.reveal .preview-link-overlay header a {
- 			display: inline-block;
- 			width: 40px;
- 			height: 40px;
- 			padding: 0 10px;
- 			float: right;
- 			opacity: 0.6;
-
- 			-moz-box-sizing: border-box;
-
- 			     box-sizing: border-box;
- 		}
- 			.reveal .preview-link-overlay header a:hover {
- 				opacity: 1;
- 			}
- 			.reveal .preview-link-overlay header a .icon {
- 				display: inline-block;
- 				width: 20px;
- 				height: 20px;
-
- 				background-position: 50% 50%;
- 				background-size: 100%;
- 				background-repeat: no-repeat;
- 			}
- 			.reveal .preview-link-overlay header a.close .icon {
- 				background-image: url(data:image/png;base64,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);
- 			}
- 			.reveal .preview-link-overlay header a.external .icon {
- 				background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAcElEQVRYR+2WSQoAIQwEzf8f7XiOMkUQxUPlGkM3hVmiQfQR9GYnH1SsAQlI4DiBqkCMoNb9y2e90IAEJPAcgdznU9+engMaeJ7Azh5Y1U67gAho4DqBqmB1buAf0MB1AlVBek83ZPkmJMGc1wAR+AAqod/B97TRpQAAAABJRU5ErkJggg==);
- 			}
-
- 	.reveal .preview-link-overlay .viewport {
- 		position: absolute;
- 		top: 40px;
- 		right: 0;
- 		bottom: 0;
- 		left: 0;
- 	}
-
- 	.reveal .preview-link-overlay .viewport iframe {
- 		width: 100%;
- 		height: 100%;
- 		max-width: 100%;
- 		max-height: 100%;
- 		border: 0;
-
- 		opacity: 0;
- 		visibility: hidden;
- 		-webkit-transition: all 0.3s ease;
- 		        transition: all 0.3s ease;
- 	}
-
- 	.reveal .preview-link-overlay.loaded .viewport iframe {
- 		opacity: 1;
- 		visibility: visible;
- 	}
-
- 	.reveal .preview-link-overlay.loaded .spinner {
- 		opacity: 0;
- 		visibility: hidden;
- 		-webkit-transform: scale(0.2);
- 		    -ms-transform: scale(0.2);
- 		        transform: scale(0.2);
- 	}
+.reveal .overlay {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	z-index: 1000;
+	background: rgba( 0, 0, 0, 0.9 );
+	opacity: 0;
+	visibility: hidden;
+	-webkit-transition: all 0.3s ease;
+	        transition: all 0.3s ease;
+}
+	.reveal .overlay.visible {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.reveal .overlay .spinner {
+		position: absolute;
+		display: block;
+		top: 50%;
+		left: 50%;
+		width: 32px;
+		height: 32px;
+		margin: -16px 0 0 -16px;
+		z-index: 10;
+		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;
+		-webkit-transition: all 0.3s ease;
+		        transition: all 0.3s ease;
+	}
+
+	.reveal .overlay header {
+		position: absolute;
+		left: 0;
+		top: 0;
+		width: 100%;
+		height: 40px;
+		z-index: 2;
+		border-bottom: 1px solid #222;
+	}
+		.reveal .overlay header a {
+			display: inline-block;
+			width: 40px;
+			height: 40px;
+			padding: 0 10px;
+			float: right;
+			opacity: 0.6;
+
+			-moz-box-sizing: border-box;
+
+			     box-sizing: border-box;
+		}
+			.reveal .overlay header a:hover {
+				opacity: 1;
+			}
+			.reveal .overlay header a .icon {
+				display: inline-block;
+				width: 20px;
+				height: 20px;
+
+				background-position: 50% 50%;
+				background-size: 100%;
+				background-repeat: no-repeat;
+			}
+			.reveal .overlay header a.close .icon {
+				background-image: url(data:image/png;base64,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);
+			}
+			.reveal .overlay header a.external .icon {
+				background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAcElEQVRYR+2WSQoAIQwEzf8f7XiOMkUQxUPlGkM3hVmiQfQR9GYnH1SsAQlI4DiBqkCMoNb9y2e90IAEJPAcgdznU9+engMaeJ7Azh5Y1U67gAho4DqBqmB1buAf0MB1AlVBek83ZPkmJMGc1wAR+AAqod/B97TRpQAAAABJRU5ErkJggg==);
+			}
+
+	.reveal .overlay .viewport {
+		position: absolute;
+		top: 40px;
+		right: 0;
+		bottom: 0;
+		left: 0;
+	}
+
+	.reveal .overlay.overlay-preview .viewport iframe {
+		width: 100%;
+		height: 100%;
+		max-width: 100%;
+		max-height: 100%;
+		border: 0;
+
+		opacity: 0;
+		visibility: hidden;
+		-webkit-transition: all 0.3s ease;
+		        transition: all 0.3s ease;
+	}
+
+	.reveal .overlay.overlay-preview.loaded .viewport iframe {
+		opacity: 1;
+		visibility: visible;
+	}
+
+	.reveal .overlay.overlay-preview.loaded .spinner {
+		opacity: 0;
+		visibility: hidden;
+		-webkit-transform: scale(0.2);
+		    -ms-transform: scale(0.2);
+		        transform: scale(0.2);
+	}
+
+	.reveal .overlay.overlay-help .viewport {
+		overflow: auto;
+		color: #fff;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner {
+		width: 600px;
+		margin: 0 auto;
+		padding: 60px;
+		text-align: center;
+		letter-spacing: normal;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner .title {
+		font-size: 20px;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table {
+		border: 1px solid #fff;
+		border-collapse: collapse;
+		font-size: 14px;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table th,
+	.reveal .overlay.overlay-help .viewport .viewport-inner table td {
+		width: 200px;
+		padding: 10px;
+		border: 1px solid #fff;
+		vertical-align: middle;
+	}
+
+	.reveal .overlay.overlay-help .viewport .viewport-inner table th {
+		padding-top: 20px;
+		padding-bottom: 20px;
+	}
 
 
 
@@ -1570,9 +1506,6 @@ body {
 .zoomed .reveal *,
 .zoomed .reveal *:before,
 .zoomed .reveal *:after {
-	-webkit-transform: none !important;
-	    -ms-transform: none !important;
-	        transform: none !important;
 	-ms-backface-visibility: visible !important;
 	    -webkit-backface-visibility: visible !important;
 	        backface-visibility: visible !important;