Can anyone help with the problem (the product closes the dropdown menu items)?

Question

css

Answer 1

Duff1k ,
It's hard to say where to add without being able to "feel" the code.
A screenshot doesn't do much for that.
Possibly to the "navbar" class

.navbar {
    z-index: 999;
}

.
However, setting large numbers "z-index: 99999...." is not the best way.
But given that you are not very versed in the issue, you can make a discount on this.

Answer 2

z-index:9999;
add navigation