JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head profile="http://gmpg.org/xfn/11">
<meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" />
<title><?php elegant_titles(); ?></title>
<?php elegant_description(); ?>
<?php elegant_keywords(); ?>
<?php elegant_canonical(); ?>

<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); ?>" type="text/css" media="screen" />
<link rel="stylesheet" href="<?php echo get_template_directory_uri(); ?>/css/colorpicker.css" type="text/css" media="screen" />

<link href='http://fonts.googleapis.com/css?family=Droid+Sans:regular,bold' rel='stylesheet' type='text/css'/>
<link href='http://fonts.googleapis.com/css?family=Kreon:light,regular' rel='stylesheet' type='text/css'/>
<link rel="alternate" type="application/rss+xml" title="<?php bloginfo('name'); ?> RSS Feed" href="<?php bloginfo('rss2_url'); ?>" />
<link rel="alternate" type="application/atom+xml" title="<?php bloginfo('name'); ?> Atom Feed" href="<?php bloginfo('atom_url'); ?>" />
<link rel="pingback" href="<?php bloginfo('pingback_url'); ?>" />

<script type="text/javascript">
    document.documentElement.className = 'js';
</script>



</head>
<body>
<div class="clearfix" id="second-menu">
    <ul class="nav sf-js-enabled" id="secondary-menu">
        <li class="mfilm"><a style="border-bottom:9px solid #ea2e49" href="">Test menu 1</a></li>
       <li class="mfilm"><a style="border-bottom:9px solid #ea2e49" href="">Test menu 1</a></li>
        <li class="mtv"><a style="border-bottom:9px solid #2589cf" href="">Test menu 2</a></li>
    </ul>

<ul id="mega">
    <li style="background:none;" class="dif mmore"><a style="font-style:italic;border-bottom:9px solid #4b5571" href="#">More...</a>
      <div>

<ticman>

    <ul>
        <li class="mgames"><a...

CSS

/*
Theme Name: Aggregate
Theme URI: http://www.elegantthemes.com/gallery/
Version: 2.3
Description: 2 Column theme from Elegant Themes
Author: Elegant Themes
Author URI: http://www.elegantthemes.com
*/


/*------------------------------------------------*/
/*-----------------[RESET]------------------------*/
/*------------------------------------------------*/

/* http://meyerweb.com/eric/tools/css/reset/ */
/* v1.0 | 20080212 */

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend { margin: 0; padding: 0; border: 0; outline: 0; font-size: 100%; vertical-align: baseline; background: transparent; }

body { line-height: 1; }
ol, ul { list-style: none; }
blockquote, q {    quotes: none; }

blockquote:before, blockquote:after,q:before, q:after { content: ''; content: none; }

/* remember to define focus styles! */
:focus { outline: 0; }

/* remember to highlight inserts somehow! */
ins { text-decoration: none; }
del { text-decoration: line-through; }

/* tables still need 'cellspacing="0"' in the markup */
table { border-collapse: collapse; border-spacing: 0; }


/*------------------------------------------------*/
/*-----------------[BASIC STYLES]-----------------*/
/*------------------------------------------------*/

body { line-height: 20px; font-family:'Droid Sans',Arial,Verdana,sans-serif; font-size: 12px; color: #48423f; background: url(images/header-bg.png); text-shadow: 1px 1px 0 #fff; }

a { text-decoration: none; color: #00b7f3; }
a:hover { text-decoration: underline; }
.clear { clear: both; }
.ui-tabs-hide { display: none; }
br.clear { margin: 0px; padding: 0px; }

h1, h2, h3, h4, h5, h6 { padding-bottom: 5px; color: #48423F; letter-spacing: -1px; line-height: 1em; font-weight: normal; }
h1 a, h2 a, h3 a, h4 a, h5 a,...