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@@ -507,7 +507,9 @@ var Reveal = (function(){
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};
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var element = document.createElement( 'div' );
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- element.className = 'slide-background';
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+
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+ // Carry over custom classes from the slide to the background
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+ element.className = 'slide-background ' + slide.className.replace( /present|past|future/, '' );
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if( data.background ) {
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// Auto-wrap image urls in url(...)
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@@ -2036,14 +2038,18 @@ var Reveal = (function(){
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// states of their slides (past/present/future)
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toArray( dom.background.childNodes ).forEach( function( backgroundh, h ) {
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+ backgroundh.classList.remove( 'past' );
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+ backgroundh.classList.remove( 'present' );
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+ backgroundh.classList.remove( 'future' );
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+
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if( h < indexh ) {
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- backgroundh.className = 'slide-background ' + horizontalPast;
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+ backgroundh.classList.add( horizontalPast );
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}
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else if ( h > indexh ) {
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- backgroundh.className = 'slide-background ' + horizontalFuture;
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+ backgroundh.classList.add( horizontalFuture );
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}
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else {
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- backgroundh.className = 'slide-background present';
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+ backgroundh.classList.add( 'present' );
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// Store a reference to the current background element
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currentBackground = backgroundh;
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@@ -2052,14 +2058,18 @@ var Reveal = (function(){
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if( includeAll || h === indexh ) {
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toArray( backgroundh.querySelectorAll( '.slide-background' ) ).forEach( function( backgroundv, v ) {
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+ backgroundv.classList.remove( 'past' );
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+ backgroundv.classList.remove( 'present' );
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+ backgroundv.classList.remove( 'future' );
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+
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if( v < indexv ) {
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- backgroundv.className = 'slide-background past';
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+ backgroundv.classList.add( 'past' );
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}
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else if ( v > indexv ) {
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- backgroundv.className = 'slide-background future';
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+ backgroundv.classList.add( 'future' );
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}
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else {
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- backgroundv.className = 'slide-background present';
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+ backgroundv.classList.add( 'present' );
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// Only if this is the present horizontal and vertical slide
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if( h === indexh ) currentBackground = backgroundv;
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