section {
	max-width: 1300px;
	margin: auto;
	background-color: whitesmoke;
}

#conteneur {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;	
}

#conteneur div {
	width: 350px;
	background-color: whitesmoke;
	padding: 20px;
}

p, h2, h3, h1 {
	text-align: center;
}