woocommerce/plugins/woocommerce-blocks/assets/js/base/components/shipping-calculator/style.scss

.wc-block-shipping-calculator-address {
	margin-bottom: 0;
}

.wc-block-shipping-calculator-address__button {
	margin-top: $gap;
	width: 100%;
}

.wc-block-cart__shipping-calculator {
	padding-top: $gap-large;
}