main {
	padding-top: 4em;

	@media screen and (1280px <=width) {
		section {
			&:nth-of-type(1) {
				grid-template-areas:
					"_1 _1 _1"
					"_2 _2 ."
					"_3 _3 .";
			}

			&:nth-of-type(2) {
				grid-template-areas:
					"_1 _1 _1"
					"_2 _2 ."
					"_3 _3 .";
			}

			&:nth-of-type(3) {
				grid-template-areas:
					"_1 _1 _1"
					"_2 _2 ."
					"_3 _3 ."
					"_4 _4 .";
			}
		}
	}
}