diff --git a/README.md b/README.md
index 8d09668..20965a9 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 A CSS 3D slideshow tool for quickly creating good looking HTML presentations. Doesn't _rely_ on any external libraries but [highlight.js](http://softwaremaniacs.org/soft/highlight/en/description/) is included by default for code highlighting.
 
-Note that this requires a browser with support for CSS 3D transforms and ``classList``. If CSS 3D support is not detected, the presentation will degrade to less exciting 2D transitions. A [classList polyfill](https://github.com/remy/polyfills/blob/master/classList.js) from [@remy](https://github.com/remy) is also incuded to make this work in < iOS 5, < Safari 5.1 and IE.
+Note that this requires a browser with support for CSS 3D transforms and ``classList``. If CSS 3D support is not detected, the presentation will degrade to less exciting 2D transitions. A [classList polyfill](http://purl.eligrey.com/github/classList.js/blob/master/classList.js) is incuded to make this work in < iOS 5, < Safari 5.1 and IE.
 
 Curious about how it looks in action? [Check out the demo page](http://lab.hakim.se/reveal-js/).
 
diff --git a/css/main.css b/css/main.css
index a9508ca..5706a35 100644
--- a/css/main.css
+++ b/css/main.css
@@ -42,12 +42,13 @@ html, body {
 
 html {
 	background: #1c1e20;
-	background: -moz-radial-gradient(center, ellipse cover, #555a5f 0%, #1c1e20 100%);
-	background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,#555a5f), color-stop(100%,#1c1e20));
-	background: -webkit-radial-gradient(center, ellipse cover, #555a5f 0%,#1c1e20 100%);
-	background: -o-radial-gradient(center, ellipse cover, #555a5f 0%,#1c1e20 100%);
-	background: -ms-radial-gradient(center, ellipse cover, #555a5f 0%,#1c1e20 100%);
-	background: radial-gradient(center, ellipse cover, #555a5f 0%,#1c1e20 100%);
+	background: url(data:image/svg+xml;base64,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);
+	background: -moz-radial-gradient(center, ellipse cover,  rgba(85,90,95,1) 0%, rgba(28,30,32,1) 100%);
+	background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,rgba(85,90,95,1)), color-stop(100%,rgba(28,30,32,1)));
+	background: -webkit-radial-gradient(center, ellipse cover,  rgba(85,90,95,1) 0%,rgba(28,30,32,1) 100%);
+	background: -o-radial-gradient(center, ellipse cover,  rgba(85,90,95,1) 0%,rgba(28,30,32,1) 100%);
+	background: -ms-radial-gradient(center, ellipse cover,  rgba(85,90,95,1) 0%,rgba(28,30,32,1) 100%);
+	background: radial-gradient(center, ellipse cover,  rgba(85,90,95,1) 0%,rgba(28,30,32,1) 100%);
 }
 
 /*********************************************
diff --git a/js/reveal.js b/js/reveal.js
index 3360255..4761595 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -461,7 +461,7 @@ var Reveal = (function(){
 
 			// If this slide has a state associated with it, add it
 			// onto the current state of the deck
-			var slideState = slides[index].dataset.state;
+			var slideState = slides[index].getAttribute( 'data-state' );
 			if( slideState ) {
 				state = state.concat( slideState.split( ' ' ) );
 			}
diff --git a/js/reveal.min.js b/js/reveal.min.js
index 2bbb956..b055124 100644
--- a/js/reveal.min.js
+++ b/js/reveal.min.js
@@ -31,8 +31,8 @@ N.style.MozTransform="";N.style.msTransform="";N.style.OTransform="";N.style.tra
 }function x(M){if(H()){M.preventDefault();I();j=this.getAttribute("data-index-h");c=this.getAttribute("data-index-v");b();}}function L(N,P){var R=Array.prototype.slice.call(document.querySelectorAll(N)),S=R.length;
 if(S){if(E.loop){P%=S;if(P<0){P=S+P;}}P=Math.max(Math.min(P,S-1),0);for(var Q=0;Q<S;Q++){var M=R[Q];if(H()===false){var T=Math.abs((P-Q)%(S-3))||0;M.style.display=T>3?"none":"block";
 }R[Q].classList.remove("past");R[Q].classList.remove("present");R[Q].classList.remove("future");if(Q<P){R[Q].classList.add("past");}else{if(Q>P){R[Q].classList.add("future");
-}}if(M.querySelector("section")){R[Q].classList.add("stack");}}R[P].classList.add("present");var O=R[P].dataset.state;if(O){K=K.concat(O.split(" "));}}else{P=0;
-}return P;}function b(){var Q=K.concat();K.length=0;j=L(i,j);c=L(a,c);stateLoop:for(var O=0,M=K.length;O<M;O++){for(var N=0;N<Q.length;N++){if(Q[N]===K[O]){Q.splice(N,1);
+}}if(M.querySelector("section")){R[Q].classList.add("stack");}}R[P].classList.add("present");var O=R[P].getAttribute("data-state");if(O){K=K.concat(O.split(" "));
+}}else{P=0;}return P;}function b(){var Q=K.concat();K.length=0;j=L(i,j);c=L(a,c);stateLoop:for(var O=0,M=K.length;O<M;O++){for(var N=0;N<Q.length;N++){if(Q[N]===K[O]){Q.splice(N,1);
 continue stateLoop;}}document.documentElement.classList.add(K[O]);var P=document.createEvent("HTMLEvents");P.initEvent(K[O],true,true);document.dispatchEvent(P);
 }while(Q.length){document.documentElement.classList.remove(Q.pop());}if(E.progress){d.progressbar.style.width=(j/(document.querySelectorAll(i).length-1))*window.innerWidth+"px";
 }if(H()){z();}n();clearTimeout(w);w=setTimeout(f,1500);}function n(){var M=e();[d.controlsLeft,d.controlsRight,d.controlsUp,d.controlsDown].forEach(function(N){N.classList.remove("enabled");
diff --git a/lib/classList.js b/lib/classList.js
index 1bb626d..44f2b4c 100644
--- a/lib/classList.js
+++ b/lib/classList.js
@@ -1,3 +1,2 @@
-// classList polyfill from https://github.com/remy/polyfills/blob/master/classList.js
-(function(){function c(a){this._element=a;if(a.className!=this.classCache){this._classCache=a.className;var a=this._classCache.split(" "),b;for(b=0;b<a.length;b++)e.call(this,a[b])}}if(!("undefined"===typeof Element||Element.prototype.hasOwnProperty("classList"))){var d=[].indexOf,f=[].slice,e=[].push,g=[].splice,h=[].join;c.prototype={add:function(a){e.call(this,a);this._element.className=f.call(this,0).join(" ")},contains:function(a){return-1!==d.call(this,a)},item:function(a){return this[a]||null},
-remove:function(a){a=d.call(this,a);g.call(this,a,1);this._element.className=f.call(this,0).join(" ")},toString:function(){return h.call(this," ")},toggle:function(a){-1===d.call(this,a)?this.add(a):this.remove(a)}};window.DOMTokenList=c;Element.prototype.__defineGetter__("classList",function(){return new c(this)})}})();
\ No newline at end of file
+/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js*/
+if(typeof document!=="undefined"&&!("classList" in document.createElement("a"))){(function(j){var a="classList",f="prototype",m=(j.HTMLElement||j.Element)[f],b=Object,k=String[f].trim||function(){return this.replace(/^\s+|\s+$/g,"")},c=Array[f].indexOf||function(q){var p=0,o=this.length;for(;p<o;p++){if(p in this&&this[p]===q){return p}}return -1},n=function(o,p){this.name=o;this.code=DOMException[o];this.message=p},g=function(p,o){if(o===""){throw new n("SYNTAX_ERR","An invalid or illegal string was specified")}if(/\s/.test(o)){throw new n("INVALID_CHARACTER_ERR","String contains an invalid character")}return c.call(p,o)},d=function(s){var r=k.call(s.className),q=r?r.split(/\s+/):[],p=0,o=q.length;for(;p<o;p++){this.push(q[p])}this._updateClassName=function(){s.className=this.toString()}},e=d[f]=[],i=function(){return new d(this)};n[f]=Error[f];e.item=function(o){return this[o]||null};e.contains=function(o){o+="";return g(this,o)!==-1};e.add=function(o){o+="";if(g(this,o)===-1){this.push(o);this._updateClassName()}};e.remove=function(p){p+="";var o=g(this,p);if(o!==-1){this.splice(o,1);this._updateClassName()}};e.toggle=function(o){o+="";if(g(this,o)===-1){this.add(o)}else{this.remove(o)}};e.toString=function(){return this.join(" ")};if(b.defineProperty){var l={get:i,enumerable:true,configurable:true};try{b.defineProperty(m,a,l)}catch(h){if(h.number===-2146823252){l.enumerable=false;b.defineProperty(m,a,l)}}}else{if(b[f].__defineGetter__){m.__defineGetter__(a,i)}}}(self))};
\ No newline at end of file