fix bug that caused vertical stacks to shift unexpectedly in overview (closes #122)

css/main.css

@@ -259,6 +259,7 @@ body {
 }
 	
 	.reveal .controls a {
+		font-family: Arial;
 		font-size: 0.83em;
 		position: absolute;
 		opacity: 0.1;

js/reveal.js

 /*!
- * reveal.js 2.0 r18
+ * reveal.js 2.0 r19
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  * 
@@ -544,7 +544,7 @@ var Reveal = (function(){
 
 			for( var j = 0, len2 = verticalSlides.length; j < len2; j++ ) {
 				var vslide = verticalSlides[j],
-					vtransform = 'translate(0%, ' + ( ( j - indexv ) * 105 ) + '%)';
+					vtransform = 'translate(0%, ' + ( ( j - ( i === indexh ? indexv : 0 ) ) * 105 ) + '%)';
 
 				vslide.setAttribute( 'data-index-h', i );
 				vslide.setAttribute( 'data-index-v', j );

js/reveal.min.js

 /*!
- * reveal.js 2.0 r18
+ * reveal.js 2.0 r19
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  * 
@@ -35,7 +35,7 @@ for(var af=0,ad=ae.length;af<ad;af++){var ag=ae[af];if(ag.textContent&&!ag.query
 ag.innerHTML='<span data-title="'+ag.text+'">'+ag.innerHTML+"</span>";}}}}function G(){d.wrapper.classList.add("overview");var ad=Array.prototype.slice.call(document.querySelectorAll(k));
 for(var ai=0,ag=ad.length;ai<ag;ai++){var af=ad[ai],am="translateZ(-2500px) translate("+((ai-l)*105)+"%, 0%)";af.setAttribute("data-index-h",ai);af.style.display="block";
 af.style.WebkitTransform=am;af.style.MozTransform=am;af.style.msTransform=am;af.style.OTransform=am;af.style.transform=am;if(!af.classList.contains("stack")){af.addEventListener("click",A,true);
-}var al=Array.prototype.slice.call(af.querySelectorAll("section"));for(var ah=0,ae=al.length;ah<ae;ah++){var ak=al[ah],aj="translate(0%, "+((ah-c)*105)+"%)";
+}var al=Array.prototype.slice.call(af.querySelectorAll("section"));for(var ah=0,ae=al.length;ah<ae;ah++){var ak=al[ah],aj="translate(0%, "+((ah-(ai===l?c:0))*105)+"%)";
 ak.setAttribute("data-index-h",ai);ak.setAttribute("data-index-v",ah);ak.style.display="block";ak.style.WebkitTransform=aj;ak.style.MozTransform=aj;ak.style.msTransform=aj;
 ak.style.OTransform=aj;ak.style.transform=aj;ak.addEventListener("click",A,true);}}}function Y(){d.wrapper.classList.remove("overview");var ag=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
 for(var af=0,ad=ag.length;af<ad;af++){var ae=ag[af];ae.style.WebkitTransform="";ae.style.MozTransform="";ae.style.msTransform="";ae.style.OTransform="";