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CSS

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HTML 

              
                <div id="gs-ctrl">
	
	<div id="gs-buttons">
		<div class="play">
			<button id="resume">Play</button>
			<button id="pause">Pause</button>
			<button id="restart">Restart</button>
		</div>

		<div class="seek">
			<button id="prev">Prev</button>
			<button id="next">Next</button>
		</div>

		<div class="">
			
		</div>
	</div>

	<div id="gs-timeline">
		<span id="gs-playhead"></span>
	</div>
	
	<div id="gs-labels">
		
	</div>
	
</div>


<script type="text/javascript">
// <![CDATA[

window.Controller =
{
	// properties
		tl			:null,
		paused		:false,
		offsetX		:0,
	
	// elements
		$element	:null,
		$buttons	:null,
		$timeline	:null,
		$playhead	:null,
		$labels		:null,
		
	// instantiation
		init: function(tl, parent)
		{
			// properties
				this.tl			= tl;
				
			// wire update if not already assigned
				if ( ! this.tl.vars.onUpdate )
				{
					this.tl.eventCallback('onUpdate', this.update, null, this);
				}			
				
			// elements
				this.$element	= $('#gs-ctrl');
				this.$buttons	= $('#gs-buttons');
				this.$timeline	= $('#gs-timeline');
				this.$playhead	= $('#gs-playhead');
				this.$labels	= $('#gs-labels');
				
			// handlers
				this.$buttons
					.find('.play button')
					.on('click', $.proxy(this.onPlayButtonsClick, this));
					
				this.$buttons
					.find('.seek button')
					.on('click', $.proxy(this.onSeekButtonsClick, this));
					
				this.$timeline
					.on('mousedown', $.proxy(this.onTimelineMouseDown, this));
					
				this.$labels
					.on('click', 'span', $.proxy(this.onLabelClick, this));
					
			// append to
				this.appendTo(parent);
				
			// refresh
				this.refresh();
		},
		
	// public methods
		refresh:function()
		{
			/* seeking */
				if (this.tl.getLabelsArray)
				{
					/* variables */
						var name, time, value, html;
						var labels = this.tl.getLabelsArray();
						
					/* update labels */
						this.$labels.empty();
						for(var i = 0; i < labels.length; i++){
							name	= labels[i].name;
							time	= labels[i].time;
							value	= Math.floor((time / this.tl.duration()) * 100);
							html	= '<span style="left:' +value+ '%">' +name+ '</span>';
							this.$labels.append(html);
						}
				}
				
			// ui
				this.$buttons.find('.seek')[!!this.tl.getLabelsArray ? 'show' : 'hide']();
			
			// update	
				this.update();
		},
		
		appendTo:function(parent)
		{
			$(parent).append(this.$element);
		},
		
		seek:function(time, pause)
		{
			this.tl.seek(time);
			if (pause)
			{
				this.tl.pause();
			}
			this.update();
		},
		
		update:function()
		{
			if (this.tl)
			{
				var p = this.tl.progress();
				var t = this.tl.time();
				var d = this.tl.duration();
				var c = d * p;
				this.$playhead
					.width((p * 100) + '%')
					.html('Time:&nbsp;' + t.toFixed(3));
            console.log(t);
			}
		},
		
	// internal handlers
		onPlayButtonsClick:function(event)
		{
			this.tl[event.target.id]();
		},
		
		onSeekButtonsClick:function(event)
		{
			var t = event.target.id == 'prev'
				? this.tl.getLabelBefore() || 0
				: this.tl.getLabelAfter() || this.tl.duration();
			this.seek(t);
		},
		
		onTimelineMouseDown:function(event)
		{
			// cancel default event
				event.originalEvent.preventDefault();
				
			// update properties
				this.offsetX = event.pageX - event.offsetX;
				this.paused = this.tl.paused();
				
			// assign event handlers
				$('document')
					.on('mousemove', $.proxy(this.onTimelineMouseMove, this))
					.on('mouseup', $.proxy(this.onTimelineMouseUp, this));
					
			// update
				this.onTimelineMouseMove(event);
		},
		
		onTimelineMouseMove:function(event)
		{
			var w = this.$timeline.width();
			var x = event.pageX - this.offsetX;
			var p = x / w;
			var t = this.tl.totalDuration() * p;
			this.seek(t, true);
		},
		
		onTimelineMouseUp:function(event)
		{
			$('document').off('mousemove mouseup');
			if ( ! this.paused )
			{
				this.tl.resume();
			}
		},
		
		onLabelClick:function(event)
		{
			this.seek($(event.target).text());
		}
}

// ]]>
</script>


<style type="text/css">
button {
	/*background:#EEE;
  border:1px solid #777;*/
}
  
#gs-ctrl > *{
	position: relative;
	width:100%;
	background-color:#ccc;
	margin-top:3px;
}

#gs-ctrl *{
	cursor:default;
	font-size:11px;
}
  
#gs-buttons{
  background-color:transparent;
  margin:0 0 6px 0;
}

#gs-buttons *{
	display:inline-block;
	vertical-align:middle;
	}

#gs-buttons button {
	padding:3px 6px;
}

#gs-timeline{
	background:#444;
  border:1px solid #666;
  border-radius:3px;
   /*box-shadow: inset 0 4px 4px rgba(0,0,0,0.2),inset 0 -4px 4px rgba(0,0,0,0.23);*/
}
  
#gs-timeline span{
	display:block;
	height:30px;
	line-height: 30px;
	text-indent:15px;
	width:50%;
	background:rgba(255, 165, 0, 0.9);
	color:#000;
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
}

#gs-labels{
}

#gs-labels span{
	position: absolute;
	border-left:1px solid red;
	padding:2px;
	margin-left:-1px;
	color:#222;
	font-size:9px;
	font-weight:bold;
	text-transform: uppercase;
	cursor:pointer;
	}

/* Jonathan Marzullo - added CSS styles for buttons and progress bar */
#gs-buttons button {
  font-family:Helvetica, Arial;
	display: block;
	font-size: 12px;
	font-weight: bold;
	padding: 5px 18px 3px;
	margin: 10px 8px 10px 0;
	color: #DDD;
	background-color: #555;
	background: -webkit-linear-gradient(#999, #555);
	background: linear-gradient(#999, #555);
	border: 1px solid rgba(68,68,68,0.8);
	border-radius: 3px;
	text-shadow: 1px 1px 1px #444, -1px -1px 1px #444;
	box-shadow: 0 1px 0 #666, 
              0px 6px 0 #444,
              0 6px 6px rgba(0,0,0,0.6);
	cursor: pointer;
  position:relative;
  float:left;
}
	
#gs-buttons button:active {
  cursor:pointer;
  top:2px;
	color: #fff;
  border: 1px solid rgba(68,68,68,0.8);
	text-shadow: 0 -1px 0 #444, 0 0 2px #ffd, 0 0 53px #fff;
	box-shadow: 0 1px 0 #666, 
              0 2px 0 #444, 
              0 2px 2px rgba(0,0,0,0.9);
	transform: translateY(3px);
}

#gs-buttons button:hover{
  
}
  
#gs-buttons button#prev {
  padding-left:25px;
  padding-right:10px;
}
  
#gs-buttons button#next {
  padding-right:25px;
  padding-left:10px;
}
  
#gs-buttons button:before{
  font-size:18px;
  margin:0;
  padding:0;
  line-height: 0.7em;
  position:relative;
}
  
#gs-buttons button#next:before{
  float:right;
  position:absolute;
  top:5px;
  right:10px;
  content:"\00bb";
}
  
#gs-buttons button#prev:before{
  float:left;
  position:absolute;
  top:5px;
  left:10px;
  content:"\00ab";
}
</style>
<!--
<script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/56901/timeline-controller_1.js"></script>
-->
!

CSS 

              
                body{
  zoom:2;
}

body:before{
	font-family:"Arial";
	font-size:12px;
	content:"This is a CodePen widget for GSAP animations, and is designed only to be included in other pens. See info for details.";
}
!

JS
!
999px

Console