I use additional css to edit the color of dropdown menu. I found that the divider by default is using style 1 but I don’t like it and change to style 2. There is a problem, sometimes there is no border under the link, sometimes it have. and where can I edit the hover color of the link I try all hover color option but still not work.

Attached is the dropdown menu which should have 6 border but now only have 3.