Pure css drop down menu over link with opacity

Question

Hi,

i am having a pure css drop down menu that works fine.

My problem is that behind the menu that opens i have links that use a .disable class with opacity 40% because they are not active.

When mouse over the menu (with link behind with opacity) the drop menu disappear and kind of focus on link with opacity.

If i remove the class that has opacity works fine.

Any ideas why and resolve it

Thanks