Header Menu Transparency issue

[vietbuystore]

Hi all,

I've got this issue with my store- when I select the 'shop' button on my menu the drop down part is transparent which it makes it very difficult to read and hard to select a collection.  (as seen in the picture below). Anyone know how to fix this so it is solid and not transparent? Thanks in advance!!

[CodingFifty]

Hello,

Please share the store URL.