JSFiddle - React, Tailwind, and code Playground

by Laurent Dufour

HTML

<div class="conteneur-principal">
	<header>
		<a href="index.html"><img src="img/logo.png" alt="Logo IRE" title="Logo IRE"></a>
		<nav class="menu_principal">
			<ul>
				<li><a href="#">Accueil</a></li>
				<li><a href="#">Présentation</a></li>
				<li><a href="#">Agenda</a></li>
				<li><a href="#">Blog</a></li>
				<li><a href="#">Dans la presse</a></li>
			</ul>
		</nav>
		<h1>I.R.E.</h1>
		<h2>Institut Recherche Environnement</h2>
		<h3>Le meilleure de la science au service de la terre</h3>
	</header>
</div>

CSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: url(../img/bkgd_page.jpg);
  background-size: cover;
  background-repeat: no-repeat;
  font-family: sans-serif;
}

.conteneur-principal {
  width: 1024px;
  margin: 0 auto;
  padding-top: 50px;
}


/********** Barre de menu **********/

nav {
  float: right;
}

/********** Titres **********/

h1,
h2,
h3 {
  text-align: center;
  color:
    #fff;
}

h1 {
  margin-top: 100px;
  font-size: 60px;
  font-weight: 900;
}

h2,
h3 {
  font-family: serif;
  font-size: 40px;
}

h2 {
  font-size: 40px;
}

h3 {
  font-size: 20px;
  font-weight: normal;
  margin-top: 5px;
}



.menu_principal ul {
  display: flex;
  margin-top: 15px;
  list-style: none;
}

.menu_principal li {
  margin-right: -2px;
}

.menu_principal a {
  text-decoration: none;
  color: #fff;
  display: block;
  border: 2px dashed #fff;
  padding: 10px 20px;
}

.menu_principal a:hover {
  color: #000;
  background-color: #fff;
}