I just checked, it's still set to 15px. Your 7px is being overridden as well.
The CSS you need to look for:
Code:
.menu-categories-list ul li a:link, .menu-categories-list ul li a:visited, .menu-categories-list ul li a:hover, .menu-categories-list ul li a:active {
font-size:15px;
font-weight:bold;
}
The one you edited was this:
Code:
.menu-categories-list ul li a:link, .menu-categories-list ul li a:visited, .menu-categories-list ul li a:hover, .menu-categories-list ul li a:active {
font-size:7px;
}
Looks the same, but is different. That means theres another .css file you have to edit. I cant tell you which, since firebug isn't listing the css file names.