JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://jp.igniteui.com/js/modernizr.min.js"></script>
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.10.3/jquery-ui.min.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.core.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.lob.js"></script>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet"></link>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/structure/modules/infragistics.ui.layout.css" rel="stylesheet"></link>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/structure/infragistics.css" rel="stylesheet"></link>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/i18n/infragistics-ja.js"></script>

<h3>等しい項目</h3>
    <div style="height: 1100px;"> 
	    <div id="layout"></div>
    </div>
<h3>変更可能な幅/高さを持つ項目</h3>
    <div style="height: 1000px;"> 
	    <div id="layout-variable"></div>
    </div>

JavaScript

$(function () {
$(document).ready(function () {
            $('#layout').on("iglayoutmanageritemrendered", function (e, args) {
                args.item.text(args.index);
                args.item.css("background-color", "#2CBDF9");
                args.item.css("color", "#FFF");
                args.item.css("font-size", "20px");
                args.item.css("padding", "5px 0 0 5px");
            });
            $('#layout').igLayoutManager({
                layoutMode: "vertical",
                itemCount: 10
            });
            $('#layout-variable').on("iglayoutmanageritemrendered", function (e, args) {
                args.item.text(args.index);
                args.item.css("background-color", "#2CBDF9");
                args.item.css("color", "#FFF");
                args.item.css("font-size", "20px");
                args.item.css("padding", "5px 0 0 5px");
            });
            $('#layout-variable').igLayoutManager({
                layoutMode: "vertical",
                items: [
					{
					    width: "10%",
					    height: "150px"
					},
					{
					    width: "40%",
					    height: "250px"
					},
					{
					    width: "40%",
					    height: "150px"
					},
					{
					    width: "20%",
					    height: "150px"
					},
					{
					    width: "50%",
					    height: "150px"
					}
                ]
            });
        });
});