woocommerce/plugins/woocommerce-admin/client/homepage/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: $core-grey-light-500;
$action-color: #3858e9;

.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 {
			display: block;
			padding: $gap;
			width: 33.33%;
			margin-bottom: 4px;

			&:focus {
				outline: none;
				box-shadow: none;
			}

			&.is-active {
				border-bottom: 4px solid $action-color;
				// Avoid the text "jumping" when border-bottom applied.
				margin-bottom: 0;
			}

			&:first-child {
				text-align: left;
				padding-right: 0;
			}

			&:last-child {
				text-align: right;
				padding-left: 0;
			}
		}
	}
}

.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;
	}
}

article.woocommerce-stats-overview__install-jetpack-promo {
	h3 {
		margin: 16px 24px 8px;
	}
	p {
		margin: 0 24px 16px;
	}
	footer {
		border-top: 1px solid $promo-actions-border;

		// All of this added specificity is required because styles that
		// need overriding are already specified at a high level.
		.woocommerce-layout & button.components-button,
		.woocommerce-layout & button.components-button.is-button {
			padding: 8px 16px;
			margin: 16px 4px;
			height: inherit;
			color: $action-color;
			cursor: pointer;
			line-height: 2;
			border-radius: 3px;

			&.is-busy {
				background-image: linear-gradient(-45deg, lighten($action-color, 40%) 28%, #fff 0, #fff 72%, lighten($action-color, 40%) 0);
				cursor: progress;
				color: lighten($action-color, 20%);
			}
		}

		.woocommerce-layout & button.components-button.is-button.is-primary {
			margin-left: 24px;
			background: transparent;
			border: 1px solid $action-color;

			&:hover,
			&:focus {
				color: $core-grey-dark-500;
				background-color: #fafafa;
				border-color: #999;
			}

			&.is-busy:not(:disabled) {
				background-image: linear-gradient(-45deg, $action-color 28%, darken($action-color, 20%) 0, darken($action-color, 20%) 72%, $action-color 0) !important;
				color: $action-color;
			}
		}
	}
}