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;

			.wp-block-button__link {
				color: inherit;
			}

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

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

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