Latest version of HS not playing well with template

-- url of the page with the problem -- : www.digitalguarddawg.com/automobiles-tru...rt-automotive/pbs-ii
-- HikaShop version -- : 3.0.0
-- Joomla version -- : 3.6.5
-- Error-message(debug-mod must be tuned on) -- : none

Since the upgrade to V3, all product pages have their content pushed off the edge of the page to the left. URL given is just an example - they are all like that. Standard Joomla pages or pages where I'm using shortlinks from HS into Joomla articles are fine.

Now, I admit, this template is made using Artisteer and so is a few years old. It may be something from it that's not playing nicely with HS and not necessarily HS'd fault.