Controlling the style of the filter module

-- HikaShop version -- : 6.6.0
-- Joomla version -- : 6.1.4
-- PHP version -- : 8.3.35
-- Browser(s) name and version -- : Opera One(version: 136.0.6008.80)
-- Error-message(debug-mod must be tuned on) -- : no error

Hi,
we created a dynamic text filter for product_name, product_description along with a dedicated product menu. Then connected them in a filter module which is displaying in the header ( Theme: ShopIn  (v2.3.2 / r_shopin)  ) of our site. It's working well (displaying images, names) but we need some assistance on how to control things like width and alignment of the module. Basically we'd like to; make it display bigger, wider and align to the bottom of the header section.

We're not keen to change the css but will if we have to. Any assistance or a mini tutorial would be greatly appreciated.

Regards,
Ian and stu.