JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://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>

<h3>Equal Items</h3>
    <div style="border: 1px solid #eee; height: 300px;"> 
	    <ul id="layout"></ul>
    </div>
    <h3>Variable width/height items</h3>
    <div style="border: 1px solid #eee; min-height: 500px;"> 
	    <ul id="layout-variable"></ul>
    </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: "flow",
                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: "flow",
                items: [
					{
					    width: "10%",
					    height: "150px"
					},
					{
					    width: "40%",
					    height: "250px"
					},
					{
					    width: "40%",
					    height: "150px"
					},
					{
					    width: "20%",
					    height: "150px"
					},
					{
					    width: "50%",
					    height: "150px"
					}
                ]
            });
        });
});