woocommerce/plugins/woocommerce-blocks/assets/js/blocks/order-confirmation/additional-fields/style.scss

.wc-block-order-confirmation-additional-fields .wc-block-components-additional-fields-list {
	border: 1px solid $universal-border-light;
	border-radius: $universal-border-radius;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr max-content;
	dt,
	dd {
		border-bottom: 1px solid $universal-border-light;

		&:last-of-type {
			border-bottom: 0;
		}
	}
	dt {
		font-style: normal;
		font-weight: bold;
		padding: $gap;
		box-sizing: border-box;
		margin: 0;

		&::after {
			display: none;
		}
	}
	dd {
		padding: $gap;
		box-sizing: border-box;
		margin: 0;
		text-align: right;
	}
}
@media screen and (max-width: 768px) {
	.wc-block-order-confirmation-additional-fields .wc-block-components-additional-fields-list {
		display: block;
		dt {
			border-bottom: 0;
			padding-bottom: 0;
		}
		dd {
			text-align: left;
			border-bottom: 1px solid $universal-border-light;
			padding-top: 0;
		}
	}
}