JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>

<html lang="it-IT">

<head>
	<title>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<!-- [if lt IE 9]>
	<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
	<! [endif] --> 
	<link rel="icon" type="image/x-icon" href="../../images/icons/favicon.ico">
	<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.8/css/all.css" integrity="sha384-3AB7yXWz4OeoZcPbieVW64vVXEwADiYyAEhwilzWsLw+9FgqpyjjStpPnpBO8o8S" crossorigin="anonymous">
	<link rel="stylesheet" type="text/css" href="css/reset.css">
	<link rel="stylesheet" type="text/css" href="css/piattistyles.css">
</head>

<body>
	<nav>
		<ul>
			<li><a href="../../index.html">HOME</a></li>
			<li><a href="#">REGIONI</a>
				<ul>
					<li><a href="#">NORD</a>
						<ul>
							<li><img class="region" src="../../images/icons/emiliaromagna.png"><a href="../../regioni/emiliaromagna/emiliaromagna.html">EMILIAROMAGNA</a></li>
							<li><img class="region" src="../../images/icons/friuli.png"><a href="../../regioni/friuli/friuli.html">FRIULI</a></li>
							<li><img class="region" src="../../images/icons/liguria.png"><a href="../../regioni/liguria/liguria.html">LIGURIA</a></li>
							<li><img class="region" src="../../images/icons/lombardia.png"><a href="../../regioni/lombardia/lombardia.html">LOMBARDIA</a></li>
							<li><img class="region" src="../../images/icons/piemonte.png"><a href="../../regioni/piemonte/piemonte.html">PIEMONTE</a></li>
							<li><img class="region" src="../../images/icons/trentino.png"><a href="../../regioni/trentino/trentino.html">TRENTINO</a></li>
							<li><img class="region" src="../../images/icons/valledaosta.png"><a href="../../regioni/valledaosta/valledaosta.html">VALLE D'AOSTA</a></li>
							<li><img class="region" src="../../images/icons/veneto.png"><a...

CSS

@font-face {
	font-family: 'Rude Cookie Brush';
	src: url(../fonts/Rude Cookie Brush.otf) format("opentypefont");
}

body {
	background-image: url(../images/background.jpg);
	background-repeat: no-repeat;
	background-size: cover;
	background-attachment: fixed;
	color: #8d7200;
	font-family: 'Rude Cookie Brush', Arial, Verdana, sans-serif;
	font-size: 30px;
}

nav {
	position: absolute;
	margin: 0;
	background-color: rgba(55,119,189,0.1);
	font-family: 'Times New Roman', sans-serif;
	color: #FFFFFF;
	font-size: 25px;
	font-weight: bold;
	text-shadow: 1px 1px lightgray;
	letter-spacing: 5px;
}

nav ul {
	padding: 0;
	margin: 0;
	position: relative;
	list-style-type: none;
	z-index: 999;
}

nav ul li {
	margin: 0 -7px 0 0;
	display: inline-block;
	background-color: rgba(55,119,189,0);
}

nav a {
	display: block;
	padding: 0 20px;
	color: #FFFFFF;
	font-size: 20px;
	line-height: 60px;
	text-decoration: none;
	transition: background-color .5s ease-in-out, border-bottom .5s ease-in-out;
}

nav a:hover, nav a:focus {
	background-color: #84C945;
	border-bottom: 4px solid #FBFFCE;
}

nav ul ul {
	display: none;
	position: absolute;
	top: 100%;
	background-color: rgba(55,119,189,0.3)
}

nav ul ul a {
	border-bottom: none;
}

nav ul li:hover > ul {
	display: inherit;
}

nav ul ul li {
	min-width: 170px;
	display: list-item;
	position: relative;
}

nav ul ul ul {
	position: absolute;
	top: 0;
	left: 100%;
}

nav ul ul ul a {
	padding: 0 20px 0 50px;
}

.region {
	float: left;
	width: 35px;
	height: 35px;
	margin: 13px 0 0 8px;
}

header {
	position: relative;
	height: 400px;
	overflow: hidden;
	background-image: url(../images/header.jpg);
	background-repeat: no-repeat;
	background-size: 100% 100%;
	box-shadow: 2px 2px 5px gray;
}

	/*-- Start header animation --*/
	
.h1a, .h1b {
	position: relative;
	text-align: center;
	backface-visibility: hidden;
}

.h1a span {
	display: inline-block;
	position: relative;
	top: 70px;
	font-size: 200px;
	font-weight: bold;
	color:...