From 941b86b6c390bf91eeb6b47f12ff8bf830e28b0a Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Wed, 18 Jan 2017 10:43:29 +0100
Subject:  works with video, defaults to  (same as for images)

---
 js/reveal.js | 1 +
 1 file changed, 1 insertion(+)

(limited to 'js/reveal.js')

diff --git a/js/reveal.js b/js/reveal.js
index 7f4783e..a59916f 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -884,6 +884,7 @@
 
 		// Additional and optional background properties
 		if( data.backgroundSize ) element.style.backgroundSize = data.backgroundSize;
+		if( data.backgroundSize ) element.setAttribute( 'data-background-size', data.backgroundSize );
 		if( data.backgroundColor ) element.style.backgroundColor = data.backgroundColor;
 		if( data.backgroundRepeat ) element.style.backgroundRepeat = data.backgroundRepeat;
 		if( data.backgroundPosition ) element.style.backgroundPosition = data.backgroundPosition;
-- 
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