JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE HTML>
<html lang="da-dk" dir="ltr">

<head>
<meta name="description" content="Har du spørgsmål til din efterløn eller pension? Eller har du bare brug for et økonomisk overblik over din privat økonomi?ØkonomiEksperten giver uvildig rådgivning." />
<meta name="keywords" content="uvildig, rådgivning, privatøkonomi,aarhus, pensionsrådgiver" />
<meta name="robots" content="index.follow" />
<meta http-equiv="Content-Language" content="da-DK" />
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">
  <base href="http://www.xn--konomieksperten-4tb.dk/" />
  <meta name="author" content="Super User" />
  
  <title>Økonomisk rådgivning om privat økonomi samt pension og efterløn.</title>
  <link href="/templates/yoo_nano2/favicon.ico" rel="shortcut icon" type="image/vnd.microsoft.icon" />
  <link rel="stylesheet" href="/cache/widgetkit/widgetkit-818765cf.css" type="text/css" />
  <script src="/media/system/js/mootools-core.js" type="text/javascript"></script>
  <script src="/media/system/js/core.js" type="text/javascript"></script>
  <script src="/media/system/js/caption.js" type="text/javascript"></script>
  <script src="/media/widgetkit/js/jquery.js" type="text/javascript"></script>
  <script src="/cache/widgetkit/widgetkit-6cf401bf.js" type="text/javascript"></script>
  <script type="text/javascript">
window.addEvent('load', function() {
                new JCaption('img.caption');
            });
  </script>

<link rel="apple-touch-icon-precomposed" href="/templates/yoo_nano2/apple_touch_icon.png" />
<link rel="stylesheet" href="/templates/yoo_nano2/css/base.css" />
<link rel="stylesheet" href="/templates/yoo_nano2/styles/blocks/css/layout.css" />
<link rel="stylesheet" href="/templates/yoo_nano2/styles/blocks/css/menus.css" />
<style>.wrapper { max-width: 980px; }
#sidebar-a { width: 36%; }
#maininner { width: 64%; }
#menu .dropdown { width: 250px; }
#menu...

CSS

#header-responsive .logo, #headerbar #logo{
width:100%!important;
height:auto!important;
display: block!important;
}
#header-responsive .logo img, #headerbar #logo img{
width:100%!important;
height:auto!important;
}

.menu-responsive{
border-color: #c9c9c9;
background-color: #eaeaea;
box-shadow: none;
color: #555;
padding:8px;
border-radius:6px;
margin-top:10px;
}
.menu-responsive:focus{
    outline:none;
}

.menu-dropdown li.level1:hover .level1{
border-color: #c9c9c9!important;
background-color: #eaeaea!important;
box-shadow: none!important;
color: #555!important;
}

.menu-dropdown li.active .level1,
.menu-dropdown li.level1:active .level1,
.menu-dropdown li.active:hover .level1
{
    border-color: #ccc!important;
    background-color: #eaeaea!important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) inset,
                0 -1px 0 #bbb!important;
    color: #444!important;
}