Resizable div not responding to percentage height

Question

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I have 2 divs within a parent, one has .resizable, however i want it to have a max height in percentages, I have found the code that manages to resize the DOM, but i can't get it to work for me, I have got pretty close.

I want the resizable div to have a max height of 70% and min height of 30% (original resting point)

My fiddle:
fiddle[^]
HTML

What I have tried:

My fiddle:
fiddle[^]
HTML

HTML

<link rel="stylesheet" href="//code.jquery.com/ui/1.12.0/themes/base/jquery-ui.css">
  <link rel="stylesheet" href="/resources/demos/style.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>

<body>
<div class="wrapper">
<div class="div">
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
<h4>header</h4>
</div>
<div class="resizable" id="resizable">

JS

$("#resizable").resizable({
    autoHide: true,
    handles: "n",
    resize: function( event, ui ) {
        var parent = ui.element.parent();
        var height = ui.element.height();

        // Get the min value of height or 70% of parent height
        height = Math.min(height, parent.height() * 0.7);

        // Get the max value of height or 30% of parent height
        height = Math.max(height, parent.height() * 0.3);

        ui.element.css({
            height: height + 'px'
        });
    }
});

CSS

CSS

.wrapper {
  position: fixed;
  width: 100%;
  height: 100vh;
}

.div {
  position: absolute;
  left: 0px;
  top: 0px;
  right: 0px;
  width: 100%;
  height: 70%;
  background-color: #0098ff;
}

.resizable {
  position: absolute;
  left: 0px;
  right: 0px;
  bottom: 0px;
  width: 100%;
  height: 30%;
  background-color: red;
}

Posted 14-Jul-16 2:40am

Member 12635147

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