diff --git a/css/reveal.css b/css/reveal.css
index bc96e1e..05c2e8d 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -531,7 +531,8 @@ body {
 
 .reveal .slides > section.stack {
   padding-top: 0;
-  padding-bottom: 0; }
+  padding-bottom: 0;
+  pointer-events: none; }
 
 .reveal .slides > section.present,
 .reveal .slides > section > section.present {
diff --git a/css/reveal.scss b/css/reveal.scss
index 5992250..065a0a1 100644
--- a/css/reveal.scss
+++ b/css/reveal.scss
@@ -640,6 +640,7 @@ $controlsArrowAngleActive: 36deg;
 .reveal .slides>section.stack {
 	padding-top: 0;
 	padding-bottom: 0;
+	pointer-events: none;
 }
 
 .reveal .slides>section.present,