From f1133f0e103d6a75f5a8d4e884052c818ea86f3a Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Tue, 17 Apr 2018 09:46:55 +0200
Subject: [PATCH] support interactive iframe backgrounds in vertical stacks

---
 css/reveal.css  | 3 ++-
 css/reveal.scss | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/css/reveal.css b/css/reveal.css
index bc96e1e12d9..05c2e8d9214 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 5992250c2d7..065a0a1a42b 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,