Pia on "Display Unit Price & Case Unit in checkout page / CSS"

Hi.

Two questions pls...

(1) Anybody please help me to display the unit price (5th column) and the case unit (2nd column) of every item in our checkout page, more like an invoice page. We sell all our products in cases.

I used this

<td class="unit-price">
<?php
global $product;
if ( $price_html = $product->get_price_html() ) :
   echo $price_html;
endif;
?>
</td>

But it didnt work with my custom order-details.php

Any solution pls? I've been stucked here for days.

pls view

(2) Moreover, if I may ask, anybody has an idea how can i change the font size of the "Make your payment directly into our bank account. Please use your Order ID as the payment reference. Your order won’t be shipped until the funds have cleared in our account. – SAMPLE ONLY"........
I would want to change it into font-size: 10pt; but i couldnt do it without class because it has <p>. And it affects everything.

I am a newbie here. Please help. Thank you so much.

-Pia