client carousel on mobile

Hello.
there are problems showing client carousel with mobile.
you can check here: http://new.l2gshop.com/home-5

so i have try to apply this css that i have found in other topic but don’t work

@media handheld, only screen and (max-width: 767px) {
.hb-client-list li { width:auto !important; }
}

so i have:
1) disable the client carousel for mobile navigation
2) add a section “image carousel” that i have disable for desktop and enable for mobile

you can see here: http://new.l2gshop.com/home-4
with mobile is ok
but in desktop put all client on 2 row

my customer want that this feature work great on desktop and mobile and i can’t go online

what i can do for resovle?

regards
Francesco