#item-presentation {
	grid-column: 1 / span 1;
	grid-row: 1 / span 1;
}

#item-autrices {
	grid-column: 1 / span 1;
	grid-row: 2 / span 1;
}

#item-mission {
	grid-column: 1 / span 1;
	grid-row: 3 / span 1;
}