Layerslider / Remove borders

Hello everyone,
I’m doing some tests on a site made with Enfold, before buying the license again for a new project (see link in private content).
I’d like to use the layerslider but not fullwidth. It works apparently except that there are top & bottom borders I’d like to remove.
I’ve been reading all threads regarding this topic but none of them worked for me. Or sometimes it did partially, for example the layerslider border bottom would be removed but then at the same time the border bottom of the title & breadcrumb container would also disappear… Why is that ? Are these styles “linked” ? Is there a way to remove those layer slider borders (and shadow) without having any impact on other elements ? Thank you very much for your help !
Kind regards,
Marie

PS : When is the next huge update announced ?? ;) Can’t wait… Especially as I am going to build a new site with Enfold and I would prefer to directly start the project with this new update…