.bloc_photos {
	display: flex;
	display: -webkit-flex;
	display: -ms-flex;
	flex-direction: column;
	-webkit-flex-direction: column;
	-ms-flex-direction: column
}
.bloc_photos img { margin: 10px 0 20px 0 }
@media all and (min-width: 980px) {
	.bloc_photos {
		flex-direction: row;
		-webkit-flex-direction: row;
		-ms-flex-direction: row;
		flex-wrap: wrap
	}
	.bloc_photos img { margin: 20px 15px 20px 15px }
}