Submenu in Vertical Menu not properly working
I am using a horizontal and vertical menu on my website. I have to use z-index in both css files so the two menu are working properly. I use z-index=200 for the horizontal (main) menu and z-index=100 for the vertical submenu. But now I have the submenu of the vertical menu (Sub- submenu) not working properly. It is covered with over stuff.
See index.html and there go to Appendix A: Examples
Most likely I have to set another z-index in the css file, but I do not know in which ones. In general the combination of two menus Horizontal and vertical is not satisfactory.