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HTML

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CSS

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CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <p>The desired effect is that the timeline starts with all boxes faded out and then they will progressively fade in in sequence.</p>
<p>The default behavior of immediateRender:true on from() tweens allows tweens that are scheduled to run in the future to render their beginning state immediately.</p>
<p>When immediateRender is set to false, the boxes will all stay on the left and then jump suddenly to the right and begin fading in and moving when their tweens are scheduled to run, which isn't ideal in most situations</p>
<button id="renderTrue">play with immediateRender true (good)</button>
<button id="renderFalse">play with immediateRender false</button>
<div class="box" id="red"></div>
<div class="box" id="green"></div>
<div class="box" id="blue"></div>

<p>99% of the time immediateRender:true (the default) will provide the desired results</p>
<p>If you are doing multiple from() tweens on the same properties of the same object, then you may need to set immediateRender:false .</p>
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CSS 

              
                body
	background-color:#000;
}
#demo {
	width: 692px;
	height: 60px;
	background-color: #333;
	padding: 8px;
}

.box {
	position: relative;
	width: 60px;
	height: 60px;
	margin:10px;
	
}
#red{
	background-color: red;
}
#yellow{
	background-color: yellow;
}
#green{
	background-color: green;
}
#blue{
	background-color: blue;
}
#pink{
	background-color: pink;
}
#purple{
	background-color: purple;
}

p {
  width:720px;
}
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JS 

              
                var tl = new TimelineLite();


function createTimeline(immediateRender) {
  tl.clear().progress(0);
  TweenLite.set(".box", {clearProps:"all"});
  tl.from("#red", 1, {opacity:0, left:200, immediateRender:immediateRender})
    .from("#green", 1, {opacity:0, left:200, immediateRender:immediateRender})
    .from("#blue", 1, {opacity:0, left:200, immediateRender:immediateRender})
  
}

$("#renderTrue").click(function() {
  createTimeline(true);
})


$("#renderFalse").click(function() {
  createTimeline(false);
})
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999px

Console