diff --git a/demo/demo.html b/demo/demo.html
index 313d334..ea98857 100644
--- a/demo/demo.html
+++ b/demo/demo.html
@@ -1,9 +1,84 @@
 <!DOCTYPE html>
 <head>
-  <style type="text/css" src="style.css"></style>
+  <style type="text/css">
+    html,
+    body {
+      height: 100%;
+      width: 100%;
+    }
 
-  <script type="text/javascript" src="ics.deps.min.js"></script>
-  <script type="text/javascript" src="demo.js"></script>
+    .wrap {
+      margin: auto;
+      position: absolute;
+      top: 0;
+      left: 0;
+      bottom: 0;
+      right: 0;
+      height: 50px;
+      width: 100px;
+    }
+
+    a {
+      margin-top: 5px;
+      margin-bottom: 5px;
+      display: inline-block;
+      padding: 6px 12px;
+      margin-bottom: 0;
+      font-size: 14px;
+      font-weight: normal;
+      line-height: 1.428571429;
+      text-align: center;
+      white-space: nowrap;
+      vertical-align: middle;
+      cursor: pointer;
+      border: 1px solid transparent;
+      border-radius: 4px;
+      -webkit-user-select: none;
+      -moz-user-select: none;
+      -ms-user-select: none;
+      -o-user-select: none;
+      cursor: pointer;
+      color: #ffffff;
+      text-decoration: none;
+      font-weight: bold;
+      background-color: #428bca;
+      border-color: #357ebd;
+      font-family: sans-serif;
+      width: 120px;
+    }
+
+  </style>
+
+  <script type="text/javascript">
+    /*! ics.js Wed Aug 20 2014 17:23:02 */
+    var saveAs=saveAs||function(e){"use strict";if(typeof e==="undefined"||typeof navigator!=="undefined"&&/MSIE [1-9]\./.test(navigator.userAgent)){return}var t=e.document,n=function(){return e.URL||e.webkitURL||e},r=t.createElementNS("http://www.w3.org/1999/xhtml","a"),o="download"in r,a=function(e){var t=new MouseEvent("click");e.dispatchEvent(t)},i=/constructor/i.test(e.HTMLElement)||e.safari,f=/CriOS\/[\d]+/.test(navigator.userAgent),u=function(t){(e.setImmediate||e.setTimeout)(function(){throw t},0)},s="application/octet-stream",d=1e3*40,c=function(e){var t=function(){if(typeof e==="string"){n().revokeObjectURL(e)}else{e.remove()}};setTimeout(t,d)},l=function(e,t,n){t=[].concat(t);var r=t.length;while(r--){var o=e["on"+t[r]];if(typeof o==="function"){try{o.call(e,n||e)}catch(a){u(a)}}}},p=function(e){if(/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(e.type)){return new Blob([String.fromCharCode(65279),e],{type:e.type})}return e},v=function(t,u,d){if(!d){t=p(t)}var v=this,w=t.type,m=w===s,y,h=function(){l(v,"writestart progress write writeend".split(" "))},S=function(){if((f||m&&i)&&e.FileReader){var r=new FileReader;r.onloadend=function(){var t=f?r.result:r.result.replace(/^data:[^;]*;/,"data:attachment/file;");var n=e.open(t,"_blank");if(!n)e.location.href=t;t=undefined;v.readyState=v.DONE;h()};r.readAsDataURL(t);v.readyState=v.INIT;return}if(!y){y=n().createObjectURL(t)}if(m){e.location.href=y}else{var o=e.open(y,"_blank");if(!o){e.location.href=y}}v.readyState=v.DONE;h();c(y)};v.readyState=v.INIT;if(o){y=n().createObjectURL(t);setTimeout(function(){r.href=y;r.download=u;a(r);h();c(y);v.readyState=v.DONE});return}S()},w=v.prototype,m=function(e,t,n){return new v(e,t||e.name||"download",n)};if(typeof navigator!=="undefined"&&navigator.msSaveOrOpenBlob){return function(e,t,n){t=t||e.name||"download";if(!n){e=p(e)}return navigator.msSaveOrOpenBlob(e,t)}}w.abort=function(){};w.readyState=w.INIT=0;w.WRITING=1;w.DONE=2;w.error=w.onwritestart=w.onprogress=w.onwrite=w.onabort=w.onerror=w.onwriteend=null;return m}(typeof self!=="undefined"&&self||typeof window!=="undefined"&&window||this.content);if(typeof module!=="undefined"&&module.exports){module.exports.saveAs=saveAs}else if(typeof define!=="undefined"&&define!==null&&define.amd!==null){define("FileSaver.js",function(){return saveAs})}
+
+    var ics=function(e,t){"use strict";{if(!(navigator.userAgent.indexOf("MSIE")>-1&&-1==navigator.userAgent.indexOf("MSIE 10"))){void 0===e&&(e="default"),void 0===t&&(t="Calendar");var r=-1!==navigator.appVersion.indexOf("Win")?"\r\n":"\n",n=[],i=["BEGIN:VCALENDAR","PRODID:"+t,"VERSION:2.0"].join(r),o=r+"END:VCALENDAR",a=["SU","MO","TU","WE","TH","FR","SA"];return{events:function(){return n},calendar:function(){return i+r+n.join(r)+o},addEvent:function(t,i,o,l,u,s){if(void 0===t||void 0===i||void 0===o||void 0===l||void 0===u)return!1;if(s&&!s.rrule){if("YEARLY"!==s.freq&&"MONTHLY"!==s.freq&&"WEEKLY"!==s.freq&&"DAILY"!==s.freq)throw"Recurrence rrule frequency must be provided and be one of the following: 'YEARLY', 'MONTHLY', 'WEEKLY', or 'DAILY'";if(s.until&&isNaN(Date.parse(s.until)))throw"Recurrence rrule 'until' must be a valid date string";if(s.interval&&isNaN(parseInt(s.interval)))throw"Recurrence rrule 'interval' must be an integer";if(s.count&&isNaN(parseInt(s.count)))throw"Recurrence rrule 'count' must be an integer";if(void 0!==s.byday){if("[object Array]"!==Object.prototype.toString.call(s.byday))throw"Recurrence rrule 'byday' must be an array";if(s.byday.length>7)throw"Recurrence rrule 'byday' array must not be longer than the 7 days in a week";s.byday=s.byday.filter(function(e,t){return s.byday.indexOf(e)==t});for(var c in s.byday)if(a.indexOf(s.byday[c])<0)throw"Recurrence rrule 'byday' values must include only the following: 'SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'"}}var g=new Date(l),d=new Date(u),f=new Date,S=("0000"+g.getFullYear().toString()).slice(-4),E=("00"+(g.getMonth()+1).toString()).slice(-2),v=("00"+g.getDate().toString()).slice(-2),y=("00"+g.getHours().toString()).slice(-2),A=("00"+g.getMinutes().toString()).slice(-2),T=("00"+g.getSeconds().toString()).slice(-2),b=("0000"+d.getFullYear().toString()).slice(-4),D=("00"+(d.getMonth()+1).toString()).slice(-2),N=("00"+d.getDate().toString()).slice(-2),h=("00"+d.getHours().toString()).slice(-2),I=("00"+d.getMinutes().toString()).slice(-2),R=("00"+d.getMinutes().toString()).slice(-2),M=("0000"+f.getFullYear().toString()).slice(-4),w=("00"+(f.getMonth()+1).toString()).slice(-2),L=("00"+f.getDate().toString()).slice(-2),O=("00"+f.getHours().toString()).slice(-2),p=("00"+f.getMinutes().toString()).slice(-2),Y=("00"+f.getMinutes().toString()).slice(-2),U="",V="";y+A+T+h+I+R!=0&&(U="T"+y+A+T,V="T"+h+I+R);var B,C=S+E+v+U,j=b+D+N+V,m=M+w+L+("T"+O+p+Y);if(s)if(s.rrule)B=s.rrule;else{if(B="rrule:FREQ="+s.freq,s.until){var x=new Date(Date.parse(s.until)).toISOString();B+=";UNTIL="+x.substring(0,x.length-13).replace(/[-]/g,"")+"000000Z"}s.interval&&(B+=";INTERVAL="+s.interval),s.count&&(B+=";COUNT="+s.count),s.byday&&s.byday.length>0&&(B+=";BYDAY="+s.byday.join(","))}(new Date).toISOString();var H=["BEGIN:VEVENT","UID:"+n.length+"@"+e,"CLASS:PUBLIC","DESCRIPTION:"+i,"DTSTAMP;VALUE=DATE-TIME:"+m,"DTSTART;VALUE=DATE-TIME:"+C,"DTEND;VALUE=DATE-TIME:"+j,"LOCATION:"+o,"SUMMARY;LANGUAGE=en-us:"+t,"TRANSP:TRANSPARENT","END:VEVENT"];return B&&H.splice(4,0,B),H=H.join(r),n.push(H),H},download:function(e,t){if(n.length<1)return!1;t=void 0!==t?t:".ics",e=void 0!==e?e:"calendar";var a,l=i+r+n.join(r)+o;if(-1===navigator.userAgent.indexOf("MSIE 10"))a=new Blob([l]);else{var u=new BlobBuilder;u.append(l),a=u.getBlob("text/x-vCalendar;charset="+document.characterSet)}return saveAs(a,e+t),l},build:function(){return!(n.length<1)&&i+r+n.join(r)+o}}}console.log("Unsupported Browser")}};
+  </script>
+
+  <script type="text/javascript">
+    // Demo
+    cal = ics();
+    cal.addEvent('Christmas', 'Christian holiday celebrating the birth of Jesus Christ', 'Bethlehem', '12/25/2013', '12/25/2013');
+    cal.addEvent('Christmas', 'Christian holiday celebrating the birth of Jesus Christ', 'Bethlehem', '12/25/2014', '12/25/2014');
+    cal.addEvent('New Years', 'Watch the ball drop!', 'New York', '01/01/2015', '01/01/2015');
+    cal.addEvent('New Years', 'Watch the ball drop!', 'New York', '01/01/2016', '01/01/2016');
+
+    cal_single = ics();
+    cal_single.addEvent('Best Day', 'This is the best day to demonstrate a single event.', 'New York', '11/12/1987', '11/12/1987');
+
+
+    // You can use this for easy debugging
+    makelogs = function(obj) {
+      console.log('Events Array');
+      console.log('=================');
+      console.log(obj.events());
+      console.log('Calendar With Header');
+      console.log('=================');
+      console.log(obj.calendar());
+    }
+
+  </script>
 
 </head>
 <body>
