jQuery Splitter

Set the width property of the jqxSplitter. Author: http://jqwidgets.com

HTML

<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<script src="http://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<div id='jqxSplitter'>
    <div style="background-color: #97FFAF"></div>
    <div style="background-color: #E8C0AF"></div>
</div>
<button id="button">Change Size</button>

JavaScript

$("#jqxSplitter").jqxSplitter({
    width: '100%',
    height: '300px'
});
$("#button").click(function () {
    $("#jqxSplitter").jqxSplitter({
        panels: [{
            size: '80%'
        }]
    });
});