.wrapper{
	display:grid;
	grid-template-columns: auto 1fr;
	grid-template-rows: 1fr 1fr;
	grid-gap: 1em;
}
.wrapper > div{
	background:#ddd;
}
.box1{
	grid-column: 1;
	grid-row: 1;
}
.box2{
	grid-column: 1;
	grid-row: 2;
}