Product page gallery shows bad

-- HikaShop version -- : 3.0.1
-- Joomla version -- : 3.7.0
-- Browser(s) name and version -- : 5.5.38

After the hikashop update and joomla update, the product page gallery "hikashop_small_image_div" is not behaving as it is supposed to.
I tried modifying css but that doesnt seem to work or i am changing the wrong parameters.
There is print-screen of the way pics show on the product page. The pics should actually be on the right, not on top of the main image and product properties.

Hi,

I don't see how this is linked to the update.
The problem is with your custom CSS which is not correct.

You've added that CSS:
.hikashop_product_left_part {
width: 70% !important;
}

But it should actually be:
.hikashop_product_left_part {
width: 100% !important;
}
#hikashop_main_image_div{
width: 70% !important;
}

Doing that change, I actually get that display which looks fine to me:
monosnap.com/file/bmbVdXz4Zl5KY4oKx9xO6w5eyU1DDc

Please note that we provide user support, not view customization debugging. If you need someone to help you customize your page display, you might want to contact our partners:
www.hikashop.com/home/our-partners.html

I can see on the picture that it looks pretty fine but I can not figure out where the problem is since when i try and change those values on frontend_custom.css nothing restores it as it used to be.

I see that it now displays fine on your link.
So make sure that you clear your browser and your website cache after making the change.

Yes, that did fine.
Tnx