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-rw-r--r--js/reveal.js7
1 files changed, 4 insertions, 3 deletions
diff --git a/js/reveal.js b/js/reveal.js
index df4e8a0..24093e4 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -714,15 +714,16 @@
if( data.backgroundPosition ) element.style.backgroundPosition = data.backgroundPosition;
if( data.backgroundTransition ) element.setAttribute( 'data-background-transition', data.backgroundTransition );
+ container.appendChild( element );
+
// If this slide has a background color, add a class that
// signals if it is light
- if( element.style.backgroundColor && colorBrightness( element.style.backgroundColor ) > 128 ) {
+ var computedBackgroundColor = window.getComputedStyle( element ).backgroundColor;
+ if( computedBackgroundColor && colorBrightness( computedBackgroundColor ) > 128 ) {
slide.classList.add( 'is-background-light' );
element.classList.add( 'is-background-light' );
}
- container.appendChild( element );
-
return element;
}