JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://code.jquery.com/ui/jquery-ui-git.css">
<script src="http://code.jquery.com/ui/jquery-ui-git.js"></script>
<script src="http://rawgithub.com/jquery/jquery-ui/master/tests/jquery.simulate.js"></script>
<div id="container">
    <div id="draggable"></div>
</div>

CSS

#container {
    width: 200px;
    height: 200px;
    top: 50px;
    left: 50px;
    position: absolute;
    border: 1px dotted red;
}

#draggable {
    width: 50px;
    height: 50px;
    border: 1px solid black;
}

JavaScript

var d = $('#draggable');

d.draggable({containment: 'parent'});
d.simulate('drag', {dx: 1, dy: 1});
d.draggable('option', 'containment', 'document');

// Now try dragging above or to the left of the container.