Space between "New" (billing address) and "SHIPPING METHOD" text

-- url of the page with the problem -- : hurricanecontacts.com/index.php/checkout/
-- HikaShop version -- : 2.6.4
-- Joomla version -- : 3.6.2
-- PHP version -- : 7
-- Browser(s) name and version -- : Chrome v 53.0.2785.143 m

Hikashop Business 2.6.4
Joomla 3.6.2

On the Checkout page, I need to increase the space between the "New" (billing address) button and the "SHIPPING METHOD" text.
How can I do this please?

The image attached has an arrow pointing to the location that I need to add separation.