Menu With 2 Levels Disapear The Background

and girls! i have make a CSS menu, with 2 sub-level. The second level works properly. But when some of these second level menu has a sub-menu, the background of this disapear.... H

Solution 1:

Remove float from your .sub_subnav li. Write like this:

ul.topnavliul.subnavliul.sub_subnavli {
    float: none;
}

OR

you can write like this:

ul.topnav > li{
 float:left;
}

Solution 2:

You have a float set to left on ul.topnav li, this should be set only on ul.topnav > li

PS : you don't need subnav or sub_subnav classes since you can use css selectors to handle this