woocommerce/plugins/woocommerce-admin/client/navigation/components/container/style.scss

.woocommerce-navigation {
	display: grid;
	grid-template-rows: min-content 1fr;
	height: 100%;

	h2 {
		color: inherit; // This should be handled at component level.
	}

	.components-navigation__menu {
		overflow-y: auto;
		margin-bottom: 0;
		padding-bottom: $gap-large;
	}

	.components-navigation__group + .components-navigation__group {
		margin-top: 24px;
	}

	.components-navigation__item {
		margin-bottom: 0;
	}

	.components-navigation {
		height: 100%;
	}

	.components-navigation > div {
		height: 100%;
		display: grid;
		grid-template-rows: 1fr min-content;
	}

	&.is-root {
		padding-bottom: 100px;

		.components-navigation__menu-secondary {
			border-top: 1px solid $gray-700;
			margin: 0 -#{$gap-smaller};
			padding: $gap $gap-smaller;
		}
	}
}