jstree inline HTML demo
HTML
<script src="https://static.jstree.com/latest/assets/dist/jstree.min.js"></script>
<link rel="stylesheet" href="https://static.jstree.com/latest/assets/dist/themes/default/style.min.css">
<div id="container">
<ul>
<li data-jstree='{"opened":true}'>Root node
<ul>
<li data-jstree='{"selected":true}'>b</li>
<li>a</li>
</ul>
</li>
</ul>
</div>
JavaScript
$('#container').jstree({
"plugins" : ["wholerow"]
});