.entoure_dimage img{height: 5.4rem;}
.entoure_dimage{
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: center;
	height: auto;
}

.dico_maco, .presentation_video { 
	width: 100%; 
	min-height: 80vh; 
	margin: 0px auto;
	background-size: 100% 100%;
	padding: 20px 50px 20px 50px;
	border-spacing: 20px;
}
.dico_maco{	background-image: url(img/memento_bkgd_cahier_2page.jpg); }
.presentation_video{ background-image: url(img/memento_bkgd_tableau.jpg); color: white; }

.deux_colonnes figure{
	width: 90%;
	margin: auto;
	text-align: center;
}
.deux_par_ligne img{
	width: 30%;
}

@media screen and (max-width: 900px){
	.entoure_dimage{ margin-top: 5vh; flex-wrap: wrap;}
	.entoure_dimage div:nth-child(2){order: -1;}
	.entoure_dimage img{order: 1; height: 3.6rem;}
	.dico_maco {background-image: url(img/memento_bkgd_cahier_1page.jpg);}
}

iframe{
	display: block;
	margin: auto;
}