JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.1.1/jstree.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.1.1/themes/default/style.min.css">
<div id="jstree"></div>

JavaScript

$('#jstree').jstree({
	"core" : {
		"check_callback" : function (op, node, par, pos, more) {
            if(more && more.dnd) {
                return more.pos !== "i" && par.id == node.parent;
            }
            return true;
        },
        "data" : [{"text" : "Root 1", children : ["Child 1","Child 2","Child 3"] }, "Root 2", "Root 3"]
	},
    "plugins" : ["dnd"]
});