JSFiddle - React, Tailwind, and code Playground

HTML

<script>
    /*!
 * jQuery Cookie Plugin v1.4.0
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2013 Klaus Hartl
 * Released under the MIT license
 */
(function (factory) {
        if (typeof define === 'function' && define.amd) {
                // AMD. Register as anonymous module.
                define(['jquery'], factory);
        } else {
                // Browser globals.
                factory(jQuery);
        }
}(function ($) {

        var pluses = /\+/g;

        function encode(s) {
                return config.raw ? s : encodeURIComponent(s);
        }

        function decode(s) {
                return config.raw ? s : decodeURIComponent(s);
        }

        function stringifyCookieValue(value) {
                return encode(config.json ? JSON.stringify(value) : String(value));
        }

        function parseCookieValue(s) {
                if (s.indexOf('"') === 0) {
                        // This is a quoted cookie as according to RFC2068, unescape...
                        s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
                }

                try {
                        // Replace server-side written pluses with spaces.
                        // If we can't decode the cookie, ignore it, it's unusable.
                        // If we can't parse the cookie, ignore it, it's unusable.
                        s = decodeURIComponent(s.replace(pluses, ' '));
                        return config.json ? JSON.parse(s) : s;
                } catch(e) {}
        }

        function read(s, converter) {
                var value = config.raw ? s : parseCookieValue(s);
                return $.isFunction(converter) ? converter(value) : value;
        }

        var config = $.cookie = function (key, value, options) {

                // Write
                if (value !== undefined && !$.isFunction(value)) {
                        options = $.extend({}, config.defaults, options);

                     ...

CSS

.productToggle {
    display:none;
}

JavaScript

if ($.cookie("toggle") == "toggled")
    $("#contactToggleDiv").slideToggle("slow");

jQuery('#contactToggle').click(function () {
    jQuery('#contactToggleDiv').slideToggle('slow');
    $.cookie("toggle", "toggled");
    return false;
});