1 files changed, 44 insertions, 12 deletions

diff --git a/css/reveal.css b/css/reveal.css
index dbabfcb..296c8e9 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -3,7 +3,7 @@
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  *
- * Copyright (C) 2016 Hakim El Hattab, http://hakim.se
+ * Copyright (C) 2017 Hakim El Hattab, http://hakim.se
  */
 /*********************************************
  * RESET STYLES
@@ -57,18 +57,18 @@ body {
           transition: all .2s ease; }
   .reveal .slides section .fragment.visible {
     opacity: 1;
-    visibility: visible; }
+    visibility: inherit; }
 
 .reveal .slides section .fragment.grow {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
   .reveal .slides section .fragment.grow.visible {
     -webkit-transform: scale(1.3);
             transform: scale(1.3); }
 
 .reveal .slides section .fragment.shrink {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
   .reveal .slides section .fragment.shrink.visible {
     -webkit-transform: scale(0.7);
             transform: scale(0.7); }
@@ -82,21 +82,21 @@ body {
 
 .reveal .slides section .fragment.fade-out {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
   .reveal .slides section .fragment.fade-out.visible {
     opacity: 0;
     visibility: hidden; }
 
 .reveal .slides section .fragment.semi-fade-out {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
   .reveal .slides section .fragment.semi-fade-out.visible {
     opacity: 0.5;
-    visibility: visible; }
+    visibility: inherit; }
 
 .reveal .slides section .fragment.strike {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
   .reveal .slides section .fragment.strike.visible {
     text-decoration: line-through; }
 
@@ -133,7 +133,7 @@ body {
   visibility: hidden; }
   .reveal .slides section .fragment.current-visible.current-fragment {
     opacity: 1;
-    visibility: visible; }
+    visibility: inherit; }
 
 .reveal .slides section .fragment.highlight-red,
 .reveal .slides section .fragment.highlight-current-red,
@@ -142,7 +142,7 @@ body {
 .reveal .slides section .fragment.highlight-blue,
 .reveal .slides section .fragment.highlight-current-blue {
   opacity: 1;
-  visibility: visible; }
+  visibility: inherit; }
 
 .reveal .slides section .fragment.highlight-red.visible {
   color: #ff2c2d; }
@@ -323,6 +323,7 @@ body {
   bottom: 0;
   left: 0;
   margin: auto;
+  pointer-events: none;
   overflow: visible;
   z-index: 1;
   text-align: center;
@@ -340,6 +341,7 @@ body {
   position: absolute;
   width: 100%;
   padding: 20px 0px;
+  pointer-events: auto;
   z-index: 10;
   -webkit-transform-style: flat;
           transform-style: flat;
@@ -374,6 +376,10 @@ body {
   z-index: 11;
   opacity: 1; }
 
+.reveal .slides > section:empty,
+.reveal .slides > section > section:empty {
+  pointer-events: none; }
+
 .reveal.center,
 .reveal.center .slides,
 .reveal.center .slides section {
@@ -839,6 +845,7 @@ body {
   height: 100%;
   opacity: 0;
   visibility: hidden;
+  overflow: hidden;
   background-color: transparent;
   background-position: 50% 50%;
   background-repeat: no-repeat;
@@ -851,7 +858,8 @@ body {
 
 .reveal .slide-background.present {
   opacity: 1;
-  visibility: visible; }
+  visibility: visible;
+  z-index: 2; }
 
 .print-pdf .reveal .slide-background {
   opacity: 1 !important;
@@ -865,7 +873,13 @@ body {
   max-width: none;
   max-height: none;
   top: 0;
-  left: 0; }
+  left: 0;
+  -o-object-fit: cover;
+     object-fit: cover; }
+
+.reveal .slide-background[data-background-size="contain"] video {
+  -o-object-fit: contain;
+     object-fit: contain; }
 
 /* Immediate transition style */
 .reveal[data-background-transition=none] > .backgrounds .slide-background,
@@ -1140,6 +1154,7 @@ body {
   display: inline-block;
   width: 40px;
   height: 40px;
+  line-height: 36px;
   padding: 0 10px;
   float: right;
   opacity: 0.6;
@@ -1188,6 +1203,23 @@ body {
   opacity: 1;
   visibility: visible; }
 
+.reveal .overlay.overlay-preview.loaded .viewport-inner {
+  position: absolute;
+  z-index: -1;
+  left: 0;
+  top: 45%;
+  width: 100%;
+  text-align: center;
+  letter-spacing: normal; }
+
+.reveal .overlay.overlay-preview .x-frame-error {
+  opacity: 0;
+  -webkit-transition: opacity 0.3s ease 0.3s;
+          transition: opacity 0.3s ease 0.3s; }
+
+.reveal .overlay.overlay-preview.loaded .x-frame-error {
+  opacity: 1; }
+
 .reveal .overlay.overlay-preview.loaded .spinner {
   opacity: 0;
   visibility: hidden;