1 files changed, 9 insertions, 1 deletions
diff --git a/css/reveal.css b/css/reveal.css
index 18bb25c..82d0767 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -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;