diff --git a/ToProgress.js b/ToProgress.js
index e7b0fb5..cfccfa5 100644
--- a/ToProgress.js
+++ b/ToProgress.js
@@ -67,7 +67,8 @@
       "width": "0%",
       "transition": "width " + this.options.duration + "s" + ", opacity " + this.options.opacityDuration + "s",
       "-moz-transition": "width " + this.options.duration + "s" + ", opacity " + this.options.opacityDuration + "s",
-      "-webkit-transition": "width " + this.options.duration + "s" + ", opacity " + this.options.opacityDuration + "s"
+      "-webkit-transition": "width " + this.options.duration + "s" + ", opacity " + this.options.opacityDuration + "s",
+      "z-index": this.options.zIndex
     });
 
     // Create the Progress Bar
@@ -142,4 +143,4 @@
   }
 
   return ToProgress
-})
\ No newline at end of file
+})
diff --git a/ToProgress.min.js b/ToProgress.min.js
index 848a8d6..8963cb1 100644
--- a/ToProgress.min.js
+++ b/ToProgress.min.js
@@ -1 +1 @@
-!function(t,s){"function"==typeof define&&define.amd?define([],s):"object"==typeof exports?module.exports=s():t.ToProgress=s()}(this,function(){function t(){var t,s=document.createElement("fakeelement"),i={transition:"transitionend",OTransition:"oTransitionEnd",MozTransition:"transitionend",WebkitTransition:"webkitTransitionEnd"};for(t in i)if(void 0!==s.style[t])return i[t]}function s(t,s){if(this.progress=0,this.options={id:"top-progress-bar",color:"#F44336",height:"2px",duration:.2},t&&"object"==typeof t)for(var i in t)this.options[i]=t[i];if(this.options.opacityDuration=3*this.options.duration,this.progressBar=document.createElement("div"),this.progressBar.id=this.options.id,this.progressBar.setCSS=function(t){for(var s in t)this.style[s]=t[s]},this.progressBar.setCSS({position:s?"relative":"fixed",top:"0",left:"0",right:"0","background-color":this.options.color,height:this.options.height,width:"0%",transition:"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s","-moz-transition":"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s","-webkit-transition":"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s"}),s){var o=document.querySelector(s);o&&(o.hasChildNodes()?o.insertBefore(this.progressBar,o.firstChild):o.appendChild(this.progressBar))}else document.body.appendChild(this.progressBar)}var i=t();return s.prototype.transit=function(){this.progressBar.style.width=this.progress+"%"},s.prototype.getProgress=function(){return this.progress},s.prototype.setProgress=function(t,s){this.show(),this.progress=t>100?100:0>t?0:t,this.transit(),s&&s()},s.prototype.increase=function(t,s){this.show(),this.setProgress(this.progress+t,s)},s.prototype.decrease=function(t,s){this.show(),this.setProgress(this.progress-t,s)},s.prototype.finish=function(t){var s=this;this.setProgress(100,t),this.hide(),i&&this.progressBar.addEventListener(i,function(t){s.reset(),s.progressBar.removeEventListener(t.type,arguments.callee)})},s.prototype.reset=function(t){this.progress=0,this.transit(),t&&t()},s.prototype.hide=function(){this.progressBar.style.opacity="0"},s.prototype.show=function(){this.progressBar.style.opacity="1"},s});
\ No newline at end of file
+!function(t,s){"function"==typeof define&&define.amd?define([],s):"object"==typeof exports?module.exports=s():t.ToProgress=s()}(this,function(){function t(){var t,s=document.createElement("fakeelement"),i={transition:"transitionend",OTransition:"oTransitionEnd",MozTransition:"transitionend",WebkitTransition:"webkitTransitionEnd"};for(t in i)if(void 0!==s.style[t])return i[t]}function s(t,s){if(this.progress=0,this.options={id:"top-progress-bar",color:"#F44336",height:"2px",duration:.2},t&&"object"==typeof t)for(var i in t)this.options[i]=t[i];if(this.options.opacityDuration=3*this.options.duration,this.progressBar=document.createElement("div"),this.progressBar.id=this.options.id,this.progressBar.setCSS=function(t){for(var s in t)this.style[s]=t[s]},this.progressBar.setCSS({position:s?"relative":"fixed",top:"0",left:"0",right:"0","background-color":this.options.color,height:this.options.height,width:"0%",transition:"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s","-moz-transition":"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s","-webkit-transition":"width "+this.options.duration+"s, opacity "+this.options.opacityDuration+"s","z-index":this.options.zIndex}),s){var o=document.querySelector(s);o&&(o.hasChildNodes()?o.insertBefore(this.progressBar,o.firstChild):o.appendChild(this.progressBar))}else document.body.appendChild(this.progressBar)}var i=t();return s.prototype.transit=function(){this.progressBar.style.width=this.progress+"%"},s.prototype.getProgress=function(){return this.progress},s.prototype.setProgress=function(t,s){this.show(),this.progress=t>100?100:0>t?0:t,this.transit(),s&&s()},s.prototype.increase=function(t,s){this.show(),this.setProgress(this.progress+t,s)},s.prototype.decrease=function(t,s){this.show(),this.setProgress(this.progress-t,s)},s.prototype.finish=function(t){var s=this;this.setProgress(100,t),this.hide(),i&&this.progressBar.addEventListener(i,function(t){s.reset(),s.progressBar.removeEventListener(t.type,arguments.callee)})},s.prototype.reset=function(t){this.progress=0,this.transit(),t&&t()},s.prototype.hide=function(){this.progressBar.style.opacity="0"},s.prototype.show=function(){this.progressBar.style.opacity="1"},s});