JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/free-jqgrid/4.15.2/jquery.jqgrid.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/free-jqgrid/4.15.2/css/ui.jqgrid.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/free-jqgrid/4.15.2/i18n/grid.locale-en.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.css">
<div id="outer">
    <table id="jqGridTest"></table>
</div>

CSS

#outer { margin-right: 50px; }

JavaScript

$(document).ready(function () {
    var columns = "[\"Description\",\"Level3\",\"Level2\",\"Level1\",\"Jan - 2017\",\"Feb - 2017\",\"Mar - 2017\"]";
    var columnModels = "[{\"name\":\"Description\",\"editable\":false,\"width\":\"300\",\"formatter\":\"\",\"hidden\":false,\"align\":\"\",\"formatoptions\":\"\",\"summaryTpl\":\"\",\"summaryType\":\"\"},{\"name\":\"Level3\",\"editable\":false,\"width\":\"10\",\"formatter\":\"\",\"hidden\":true,\"align\":\"\",\"formatoptions\":\"\",\"summaryTpl\":\"\",\"summaryType\":\"\"},{\"name\":\"Level2\",\"editable\":false,\"width\":\"10\",\"formatter\":\"\",\"hidden\":true,\"align\":\"\",\"formatoptions\":\"\",\"summaryTpl\":\"\",\"summaryType\":\"\"},{\"name\":\"Level1\",\"editable\":false,\"width\":\"10\",\"formatter\":\"\",\"hidden\":true,\"align\":\"\",\"formatoptions\":\"\",\"summaryTpl\":\"\",\"summaryType\":\"\"},{\"name\":\"Jan - 2017\",\"editable\":true,\"width\":\"100\",\"formatter\":\"currency\",\"hidden\":false,\"align\":\"right\",\"formatoptions\":{\"prefix\":\"$\"},\"summaryTpl\":\"<b>{0}</b>\",\"summaryType\":\"sum\"},{\"name\":\"Feb - 2017\",\"editable\":true,\"width\":\"100\",\"formatter\":\"currency\",\"hidden\":false,\"align\":\"right\",\"formatoptions\":{\"prefix\":\"$\"},\"summaryTpl\":\"<b>{0}</b>\",\"summaryType\":\"sum\"},{\"name\":\"Mar - 2017\",\"editable\":true,\"width\":\"100\",\"formatter\":\"currency\",\"hidden\":false,\"align\":\"right\",\"formatoptions\":{\"prefix\":\"$\"},\"summaryTpl\":\"<b>{0}</b>\",\"summaryType\":\"sum\"}]";
    var gridData = "[{\"Description\":\"                  Task1\",\"Level3\":\"OP\",\"Level2\":\"BD\",\"Level1\":\"L1\",\"Jan - 2017\":0.0,\"Feb - 2017\":0.0,\"Mar - 2017\":0.0},{\"Description\":\"                  Task2\",\"Level3\":\"OP\",\"Level2\":\"BD\",\"Level1\":\"L1\",\"Jan - 2017\":6610.0,\"Feb - 2017\":789.0,\"Mar - 2017\":444.0},{\"Description\":\"                  Task3\",\"Level3\":\"OP\",\"Level2\":\"FR\",\"Level1\":\"L1\",\"Jan - 2017\":0.0,\"Feb -...