JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.2/themes/sunny/jquery-ui.css">
<div class="demo">

    <div id="dialog" title="Tab data">
        <form>
            <fieldset class="ui-helper-reset">
                <label for="tab_title">Title</label>
                <input type="text" name="tab_title" id="tab_title" value="" class="ui-widget-content ui-corner-all" />
                <label for="tab_content">Content</label>
                <textarea name="tab_content" id="tab_content" class="ui-widget-content ui-corner-all"></textarea>
            </fieldset>
        </form>
    </div>

    <button id="add_tab">Add Tab</button>
    <button id="get_index">Get Selected Index</button>
    <button id="remove_selected">Remove Selected Index</button>

    <div id="tabs">
        <ul>
            <li><a href="#tabs-1">Nunc tincidunt</a> <span class="ui-icon ui-icon-close">Remove Tab</span></li>
        </ul>
        <div id="tabs-1">
            <p>Proin elit arcu, .</p>
        </div>
    </div>

</div>

CSS

#dialog label, #dialog input { display:block; }
        #dialog label { margin-top: 0.5em; }
        #dialog input, #dialog textarea { width: 95%; }
        #tabs { margin-top: 1em; }
        #tabs li .ui-icon-close { float: left; margin: 0.4em 0.2em 0 0; cursor: pointer; }
        #add_tab { cursor: pointer; }

JavaScript

$(function() {
        var $tab_title_input = $('#tab_title'), $tab_content_input = $('#tab_content');
        var tab_counter = 2;

        // tabs init with a custom tab template and an "add" callback filling in the content
        var $tabs = $('#tabs').tabs({
            tabTemplate: '<li><a href="#{href}">#{label}</a> <span class="ui-icon ui-icon-close">Remove Tab</span></li>',
            add: function(event, ui) {
                var tab_content = $tab_content_input.val() || 'Tab '+tab_counter+' content.';
                $(ui.panel).append('<p>'+tab_content+'</p>');
            }
        });

        // modal dialog init: custom buttons and a "close" callback reseting the form inside
        var $dialog = $('#dialog').dialog({
            autoOpen: false,
            modal: true,
            buttons: {
                'Add': function() {
                    addTab();
                    $(this).dialog('close');
                },
                'Cancel': function() {
                    $(this).dialog('close');
                }
            },
            open: function() {
                $tab_title_input.focus();
            },
            close: function() {
                $form[0].reset();
            }
        });

        // addTab form: calls addTab function on submit and closes the dialog
        var $form = $('form',$dialog).submit(function() {
            addTab();
            $dialog.dialog('close');
            return false;
        });

        // actual addTab function: adds new tab using the title input from the form above
        function addTab() {
            var tab_title = $tab_title_input.val() || 'Tab '+tab_counter;
            $tabs.tabs('add', '#tabs-'+tab_counter, tab_title);
            tab_counter++;
        }

        // addTab button: just opens the dialog
        $('#add_tab')
            .button()
            .click(function() {
                $dialog.dialog('open');
            });

        // close icon: removing the...