woocommerce/plugins/woocommerce-blocks/assets/js/blocks/cart-checkout/mini-cart-contents/editor.scss

.wp-block-woocommerce-mini-cart-contents {
	max-width: 480px;
	/* We need to override the margin top here to simulate the layout of
	the mini cart contents on the front end. */
	margin: 0 auto !important;
}

.wp-block-woocommerce-filled-mini-cart-contents-block {
	.block-editor-block-list__layout {
		display: flex;
		flex-direction: column;
		min-height: 100vh;
	}
}

.wp-block-woocommerce-mini-cart-products-table-block {
	margin-bottom: auto;
}