woocommerce/plugins/woocommerce-admin/client/homescreen/stats-overview/style.scss

// Set up some local color variables to make the CSS more clear
$outer-border: $core-grey-light-700;
$promo-actions-border-top: $core-grey-light-500;
$promo-actions-border-bottom: $light-gray-tertiary;

.woocommerce-stats-overview {
	.woocommerce-card__body {
		padding: 0;
	}
	.woocommerce-summary {
		margin: 0;
	}
}

.woocommerce-stats-overview__footer {
	border-top: 1px solid $outer-border;
}

.woocommerce-stats-overview__more-btn {
	display: inline-block;
	padding: $gap;
}

.woocommerce-stats-overview__tabs {
	.components-tab-panel__tabs {
		display: flex;
		justify-content: space-between;
		border-bottom: 1px solid $outer-border;

		.components-button {
			width: 33.33%;
		}
	}
}

.woocommerce-stats-overview__stats {
	margin: 0;

	.woocommerce-summary__item-container {
		width: 50%;
		display: inline-block;
	}

	.woocommerce-summary__item-container:nth-last-of-type(1) .woocommerce-summary__item {
		border-bottom: none;
	}

	&.is-even .woocommerce-summary__item-container:nth-last-of-type(2) .woocommerce-summary__item {
		border-bottom: none;
	}

	.woocommerce-summary__item-container:nth-of-type(even) .woocommerce-summary__item {
		border-right: none;
	}

	.woocommerce-summary__item {
		background-color: $studio-white;

		&:hover {
			background-color: $light-gray-100;
		}

		&:active {
			background-color: $light-gray-200;
		}
	}
}

article.woocommerce-stats-overview__install-jetpack-promo {
	h3 {
		margin: $gap $gap-large $gap-smaller;
	}
	p {
		margin: 0 $gap-large $gap;
	}
	footer {
		border-top: 1px solid $promo-actions-border-top;
		border-bottom: 1px solid $promo-actions-border-bottom;

		.components-button {
			margin: $gap $gap-smallest;
		}

		.woocommerce-layout & button.components-button.is-secondary {
			margin-left: $gap-large;
		}
	}
}