no space between category and product in the bottom

-- HikaShop version -- : 3.1.0
-- Joomla version -- : 3.6.5

Hello
After updating to hika 3.1.0 between category and product in the bottom there is not space, and they were better dislayed on mobile too.
Now I have to change something in setting of hikashop or I have to change the css??

Thanks
Frank

Hello
This is the url:
goo.gl/QFq8rD

Thanks
FRank

Hello
I set the padding-bottom to this class hkc-md-4
.hkc-md-4 {
padding-bottom: 18px;
}

Do you thnk is correct?? Or Could I have some problem?

Thanks
Frank

Hello
I noted and other strange behaviur when I resize the screen of the browser as a mobile.
The thumbnail of categorie and products are not responsive as the old Hikashop with my temaplate.
You know I am try to adapt my template to the new version of Hikashop.
How can I solve that??

Thanks for help
Frank

I tryed your code but with no good result
I think not really the problem is the image but the div that wraps the image and title...you can see in the images below with relative url

goo.gl/ZJdtz9

Yes I found it and it works
What is the best choice, change the file media/com_hikashop/css/style_default.css or by back end in the setting of css in hikashop as you can see in the img bellow

ok thanks
BUt if I change the file default css from the back end it is a sort of override??
I mean it is better change media/com_hikashop/css/style_default.css or by back end in the setting of css in hikashop??

Hello
But in what folder is it saved??

Thanks
Frank

Sorry if I was not clear
When I modify the file fronted_custom.css from back end where is it saved??
Couse after saving the file i dont find it in media/com_hikashop/css/ so I wonder where it is saved

Thanks
I found it

Frank