Can't seem to hide Slider Nav Bar

I’m new to Webflow and I’m trying to test the slider feature but can’t seem to make the gray slider nav bar at the bottom go away? I’ve searched the community and the university and it says that selecting the “Slider Nav” and selecting “Display:None” should make it disappear. I have done this and for some reason it is not working for me? It works on other elements but not the Slider Nav? Am I doing something wrong? Could it have anything to do with having a free test account? Anyway, I’m at a loss and I would greatly appreciate anyone who could offer some help?

Thank you!
Screenshot 2023-08-24 at 1.21.24 PM

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

It doesn’t appear the site link is working. Trying again

Read Only Site Link

The grey line is the bg of the slider.

set the slider hight to 260 => no more grey

the root of the problem is that image are set to fill and that they don’t extend in heigh … in a classical slider image are set to cover and could be cut

And you have major issue in responsive too, as you will need to scale image width to the wievport of the client browser