How can I make an element extend past slider mask?

I’d be super grateful if anyone could help answer this for me, It’s one of the last issues I’m having with our site before I can push it live and I’ve struggled to find a workable answer!

I have a dropdown menu contained within a slider and naturally the slider’s mask clips the content of the open dropdown menu. So I extended the bottom margin of the mask (as recommended in another post) and checked that all the parent elements allow overflow but it still gets cut off.

Here is my site Read-Only: LINK


Help us to help you. where to find this slider?

Hi Shokoaviv

The slider becomes visible when you tap the try it out button. It’s not obvious it’s a slider

The url has changed