body {
	background-color: lightblue;
}

article {
		display:grid;
	}

div {
	border: 1px solid black;
	margin: 1px;
	text-align:center;
	padding:10px;
}

@media screen and (min-width:1280px)  {
article {
	grid: auto auto / auto auto auto auto;
}
}
@media screen and (min-width:960px) and (max-width:1279px) {
article {
	grid: auto auto / auto auto auto;
}
}
@media screen and (min-width:640px) and (max-width:959px) {
article {
	grid: auto auto / auto auto;
}
}
@media screen and (max-width:639px) {
article {
	grid: auto auto / auto;
}
}

@media print {
article {
	grid: auto auto / auto auto auto;
}
}