JSFiddle - React, Tailwind, and code Playground

by NickU

HTML

<div class="rowContainer">
        <div id="header">
            <div class="menuContainer opacity0">
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/01.html">Menu Item 1</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/02.html">Long Menu Item 2</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/03.html">Menu 3</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/04.html">0004</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/05.html">Menu Item 5</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/06.html">Menu 6</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/07.html">Menu 7</div>
               <div class="menuLink" urlto="https://int.gainskeeper.com/1/08.html">Long Menu Item 008</div>
            </div>
            <div class="iconExileMenu displayNone">
            </div>
            <div class="exileMenuContainer displayNone">
            </div>
        </div>
        <iframe class="greyOut" frameborder="0" style="border: 0px; width:100%;" name="id_iframeElement" id="id_iframeElement" scrolling="auto"></iframe>

CSS

/* Set root font size and family */
html, body
{
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
}

/* Use "rem" for menuContainer font size */
.menuContainer
{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    padding-top: 0.2rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    color: #888;
    position: relative;
    font-size: 0.875rem;
    letter-spacing: 0.003rem;
    font-weight: 400;
    color: #5f6368;
    text-decoration: none !important;
    font-family: "Google Sans",sans-serif;
    width: calc( 100% - 85px);
    margin: 0;
}

    .menuLink
    {
        text-decoration: none;
        color: #888;
        margin: 0.25rem;
        margin-left: 0.5rem;
        margin-right: 0.5rem;
        margin-bottom: 0;
        padding-bottom: 0.5rem;
        display:inline-block;
    }

        .menuLink.active, .menuLink.active:hover
        {
            font-weight: 500;
            color: #1a73e8;
            position: relative;
        }

        .menuLink:hover
        {
            color: #5f6368;
            cursor: pointer;
        }

        .menuLink.active::after
        {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            content: '';
            transform-origin: center;
            animation: growline 0.1s linear;
            height: 3px;
            width: 100%;
            background: #1a73e8;
            border-top-left-radius: 4px;
            border-top-right-radius: 4px;
        }


@keyframes growline
{
    0%
    {
        transform: scaleX(0.7);
    }

    100%
    {
        transform: scaleX(1);
    }
}

.iconExileMenu
{
    width: 21px;
    height: 21px;
    margin-right: 20px;
    display: inline-block;
    right: 0px;
    top: 4px;
    position: absolute;
    cursor: pointer;
    border-radius: 10px;
    vertical-align: middle;
...

JavaScript

(function ($)
{
    // Plugin ResponsiveMenuBar

    function ResponsiveMenuBar(options)
    {
        var self = this;

        self.defaults = {
            funcClickOnActive: null,
            showDebugInfo: true
        };

        self.opts = $.extend({}, self.defaults, options);
    }

    ResponsiveMenuBar.prototype = {

        init: function ()
        {
            var self = this;

            if ($('.menuContainer').length > 0)
            {
                self.whenStarted = Date.now();
                self.run();
                return true;
            }
            else
            {
                this.outDebug('ResponsiveMenuBar: .menuContainer was not found');
                return false;
            }
        },

        idleCallbackFunction: function (idleCallbackFunction)
        {
            var self = this;
            if (typeof idleCallbackFunction === 'function')
                if ('requestidleCallbackFunction' in window)
                    window.requestidleCallbackFunction(idleCallbackFunction, { timeout: 10 });
                else
                    setTimeout(idleCallbackFunction, 10);
        },

        updateHiddenMenuLinkContainer: function ()
        {
            var self = this;

            var menuContainer = $('.menuContainer');
            var menuContainerWidth = menuContainer.width();
            var menuContainerLinks = menuContainer.children('div').not('.hiddenMenuLinkContainer').not('.displayNone');
            var totalWidth = 0;
            var exileMenuContainer = $('.exileMenuContainer');
            var hiddenMenuLinks = $('.hiddenMenuLinkContainer').not('.displayNone');


            if (hiddenMenuLinks.length === 0)
                $('.iconExileMenu').addClass('displayNone');
            else
                $('.iconExileMenu').removeClass('displayNone');


            if (menuContainerLinks.length > 1)
            {
                if (menuContainer.hasScroll())
                {
                   ...