header{
	position:fixed;
	z-index:5;
	top:0;
	width: 100%;
}

.nom{
	text-align: center;
	background-color: rgba(100,100,100,0.7);
	font-size:1.5vw;
	padding-top:0.5rem;
	padding-bottom:0.5rem;
}

.nom h1{
	margin:0;
}

.menu{
	display: flex;
	background-color: rgba(52, 52, 52, 0.9);
	font-size: 2.3vw;
	padding-top:0.5rem;
	padding-bottom:0.5rem;
}

.menu div{
	flex:1 1 auto;
	text-align: center;
}

.menu a{
	text-decoration: none;
	color:white;
}