body{
	margin: 0;
	padding: 0;
	background-color: red;
	background: url('./australie.jpg') no-repeat center fixed;
	background-size: cover;
}
nav{
	background-color: rgba(0,0,0,0.5);
	text-align: center;
	padding: 20px;
}
	a{
		color: white;
		padding: 20px;
	}
	a:hover{
		color: red
	}

#bandeau{
	margin-top: 10%;
	margin-bottom: 10%;
	background-color: rgba(255,255,255,0.5);
}
#contenu{
	text-align: center;
	width: 100%;
}
#fin_page{
	background-color: red;
}