JSFiddle - React, Tailwind, and code Playground

HTML

<nav id="site-navigation" class="main-navigation  " role="navigation">
    <ul id="menu-main" class="sf-menu menu"><li id="menu-item-31" class="menu-item menu-item-type-post_type menu-item-object-page current-menu-item page_item page-item-30 current_page_item menu-item-31"><a href="http://kageland.dk/">Forside</a></li>
        <li id="menu-item-169" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-has-children menu-item-169"><a href="http://kageland.dk/category/blandet/">Kategorier</a>
            <ul class="sub-menu">
	            <li id="menu-item-171" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-171"><a href="http://kageland.dk/category/cheesecake/">Cheesecake</a></li>
	            <li id="menu-item-170" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-170"><a href="http://kageland.dk/category/chokoladekage/">Chokoladekage</a></li>
	            <li id="menu-item-173" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-173"><a href="http://kageland.dk/category/cupcakes/">Cupcakes</a></li>
	            <li id="menu-item-172" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-172"><a href="http://kageland.dk/category/gulerodskage/">Gulerodskage</a></li>
            </ul>
        </li>
        <li id="menu-item-155" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-155"><a href="http://kageland.dk/category/chokoladekage/">Chokoladekage</a></li>
        <li id="menu-item-156" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-156"><a href="http://kageland.dk/category/cheesecake/">Cheesecake</a></li>
        <li id="menu-item-157" class="menu-item menu-item-type-taxonomy menu-item-object-category menu-item-157"><a href="http://kageland.dk/category/gulerodskage/">Gulerodskage</a></li>
        <li id="menu-item-88" class="menu-item menu-item-type-post_type menu-item-object-page...