woocommerce/plugins/woocommerce-blocks/assets/css/editor.scss

// Import the woocommerce components stylesheet
@import "~@woocommerce/components/build-style/style.css";

// Hack to hide preview overflow.
.editor-block-preview__content {
	overflow: hidden;
}

// Align the block icons in edit mode
.components-placeholder__label .gridicon,
.components-placeholder__label .material-icon {
	margin-right: 1ch;
	fill: currentColor;
}

// Remove the list styling, which is added back by core GB styles.
.editor-styles-wrapper {
	.wc-block-grid {
		.wc-block-grid__products {
			list-style: none;
			margin: 0 (-$gap/2) $gap;
			padding: 0;

			.wc-block-grid__product {
				margin: 0 0 $gap-large 0;
			}
		}

		&.components-placeholder {
			padding: 2em 1em;
		}

		&.is-loading,
		&.is-not-found {
			display: block;
		}
	}
}

// Style inline notices in the inspector.
.components-base-control {
	+ .wc-block-base-control-notice {
		margin: -$gap 0 $gap;
	}

	& + .wc-block-base-control-notice:last-child {
		margin: -$gap 0 $gap-small;
	}
}

// This border has been upstreamed to WooCommerce Admin, so it can be removed
// from here once @woocommerce/components gets updated.
// https://github.com/woocommerce/woocommerce-admin/pull/5901
.woocommerce-search-list__list {
	border: 1px solid $gray-200;
}