#popup iframe {
		width: 100%;
		height: 100%;
	}

/* --- FLEX --- */

	.flex > .center,
	.flex > section,
	.flex > article {
		flex-basis: auto;
	}

/* --- GRID --- */
	.grid {
		display: -ms-grid;
		-ms-grid-rows: auto 1fr auto;
		-ms-grid-columns: auto 1fr auto;
	}

	.grid > header {
		-ms-grid-row: 1;
		-ms-grid-column-span: 3;
	}

	.grid > footer {
		-ms-grid-row: 3;
		-ms-grid-column-span: 3;
	}

	.grid > .left {
		-ms-grid-row: 2;
		-ms-grid-column: 1;
	}

	.grid > .right {
		-ms-grid-row: 2;
		-ms-grid-column: 3;
	}

	.grid > .center {
		-ms-grid-row: 2;
		-ms-grid-column: 2;
	}

/* --- GRID exceptions --- */
	body.grid {
		-ms-grid-rows: 4rem 1fr 3rem;
	}

	body > header.grid,
	body > .center.grid,
	body > footer.grid {
		-ms-grid-columns: 25% 1fr 25%;
	}

	#popup .right.grid {
		-ms-grid-rows: 4rem 1fr 3rem;
		-ms-grid-columns: 1fr;
	}

	#popup .right.grid .frame {
		-ms-grid-row: 2;
	}