JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/themes/base/jquery-ui.css">
<div id="dlg" style="display:none;">
    <form action="dummy">
      <p><input name="username" type="text"></p>
      <p><input name="password" type="password"></p>
      <p><input type="submit" value="Log in"></p>
    </form>
</div>

JavaScript

$("#dlg").dialog({
    closeText: 'cancel',
    hide: 'fade',
    modal: true,
    close: function()
    {
        dlg.remove();
    }
});