JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<!DOCTYPE html>
<html>
    <head>
        <meta charset='utf-8'/>
        <title>POC - On demand textarea</title>
    </head>
    <body>
        <div>
            <a id='activator' title='Click' href='#editor'>Click me</a>
        </div>
        <form id='editorForm' action=''>
            <div id='editor'>
                <textarea id='theText' rows='10' cols='10' disabled=''>sadasdg</textarea>
            </div>
            <input name='theValue' type='HIDDEN' value='sadasdg'>
            <script type='text/javascript' language='JavaScript'>
                <!--
                $(document).ready (function () {
                    $("#editor").hide();
                    $("#activator").fancybox({
                        autoSize : false,    
                        height : 300,    
                        width : 400,    
                        type : 'inline',    
                        title : "Ihre Bemerkungen",    
                        beforeLoad : function () {
                            var dbText = $("form.#editorForm > input[name='theValue']").val();
                            $("#theText").val(dbText);
                            $("#editor").show();    
                        },       
                        afterShow : function () {
                            $("#theText").focus();
                        },       
                        afterClose : function () {       
                            var editorText = $("#theText").val();
                            $("form.#editorForm > input[name='theValue']").val(editorText);
                        }  
                    });
                });
                // -->
            </script>
        </form>
    </body>
</html>

CSS

/*! fancyBox v2.0.5 fancyapps.com | fancyapps.com/fancybox/#license */
.fancybox-tmp iframe, .fancybox-tmp object {
    vertical-align: top;
    padding: 0;
    margin: 0;
}

.fancybox-wrap {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1002;
}

.fancybox-outer {
    position: relative;
    padding: 0;
    margin: 0;
    background: #f9f9f9;
    color: #444;
    text-shadow: none;
    -webkit-border-radius: 4px;
       -moz-border-radius: 4px;
            border-radius: 4px;
}

.fancybox-opened {
    z-index: 1003;    
}

.fancybox-opened .fancybox-outer {
    -webkit-box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
       -moz-box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.fancybox-inner {
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    position: relative;
    outline: none;
    overflow: hidden;
}

.fancybox-error {
    color: #444;
    font: 14px/20px "Helvetica Neue",Helvetica,Arial,sans-serif;
    margin: 0;
    padding: 10px;
}

.fancybox-image, .fancybox-iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    padding: 0;
    margin: 0;
    vertical-align: top;
}

.fancybox-image {
    max-width: 100%;
    max-height: 100%;
}

#fancybox-loading, .fancybox-close, .fancybox-prev span, .fancybox-next span {
    background-image: url('fancybox_sprite.png');
}

#fancybox-loading {
    position: fixed;
    top: 50%;
    left: 50%;
    margin-top: -22px;
    margin-left: -22px;
    background-position: 0 -108px;
    opacity: 0.8;
    cursor: pointer;
    z-index: 1010;
}

#fancybox-loading div {
    width: 44px;
    height: 44px;
    background: url('fancybox_loading.gif') center center no-repeat;
}

.fancybox-close {
    position: absolute;
    top: -18px;
    right: -18px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    z-index: 1004;
}

.fancybox-nav {
    position: absolute;
    top: 0;
    width: 40%;
    height: 100%;
    cursor:...

JavaScript

/*!
 * fancyBox - jQuery Plugin
 * version: 2.0.5 (21/02/2012)
 * @requires jQuery v1.6 or later
 *
 * Examples at http://fancyapps.com/fancybox/
 * License: www.fancyapps.com/fancybox/#license
 *
 * Copyright 2012 Janis Skarnelis - janis@fancyapps.com
 *
 */
(function (window, document, $) {
    var W = $(window),
        D = $(document),
        F = $.fancybox = function () {
            F.open.apply( this, arguments );
        },
        didResize = false,
        resizeTimer = null,
        isMobile = typeof document.createTouch !== "undefined";

    $.extend(F, {
        // The current version of fancyBox
        version: '2.0.5',

        defaults: {
            padding: 15,
            margin: 20,

            width: 800,
            height: 600,
            minWidth: 100,
            minHeight: 100,
            maxWidth: 9999,
            maxHeight: 9999,

            autoSize: true,
            autoResize: !isMobile,
            autoCenter : !isMobile,
            fitToView: true,
            aspectRatio: false,
            topRatio: 0.5,

            fixed: !($.browser.msie && $.browser.version <= 6) && !isMobile,
            scrolling: 'auto', // 'auto', 'yes' or 'no'
            wrapCSS: 'fancybox-default',

            arrows: true,
            closeBtn: true,
            closeClick: false,
            nextClick : false,
            mouseWheel: true,
            autoPlay: false,
            playSpeed: 3000,
            preload : 3,

            modal: false,
            loop: true,
            ajax: { dataType: 'html', headers: { 'X-fancyBox': true } },
            keys: {
                next: [13, 32, 34, 39, 40], // enter, space, page down, right arrow, down arrow
                prev: [8, 33, 37, 38], // backspace, page up, left arrow, up arrow
                close: [27] // escape key
            },

            // Override some properties
            index: 0,
            type: null,
            href: null,
            content: null,
          ...