This still has a couple of issues beside not having the backgrounds you had for the other navbar, but it will get you a good way toward your goal.
stylesheet_catTabsDropdown.css
(Additions and replacements in red.)```
#navCatTabsDropdown
{
/ margin-top: -10px;/
}
#navCatTabsWrapper {margin: 0; padding: 0;}
#navCatTabsDropdown {margin: 0; padding: 0;}
#navCatTabsDropdown ul li
{
position: relative;
/ display: inline;
margin-right: 12px;/
}
#navCatTabsDropdown>ul {margin: 0; padding: 0;}
#navCatTabsDropdown>ul>li {display: block; float: left; width: 79px; margin: 0; padding: 0; background: #deb887 url(../images/menu_bg.png) repeat-x;}
#navCatTabsDropdown>ul>li:hover {background-color: #aaddff;}
#navCatTabsDropdown>ul>li>a {display: block; height: 30px; padding-top: 3px; font-size: 0.6em;}
#navCatTabsDropdown * li ul
{
display: block;
left: 0;
visibility: hidden;
position: absolute;
padding: 0.5em;
white-space: nowrap;
z-index: 100;
z-index: 1009;
font-size: 9px;
}
#navCatTabsDropdown * ul li
{
display: block;
text-align: left;
list-style-type: none;
}
#navCatTabsDropdown * li:hover ul
{
visibility:visible;
background-color: #ffffff;
border: 2px outset;
white-space: nowrap;
}