Navigation not displaying horizontally

Question

I've been trying to tweak every level of the CSS but cannot get the sub nav items to display horizontally on hover. Here is the test page: http://gbetza.mydomain.com/webservice2/test/Basso56/test/Reviews.html
Here is the CSS: http://gbetza.mydomain.com/webservice2/test/Basso56/test/css/style.css
Code:
<div class="fluid" id="centeredmenu">
            <ul>
                <li>
                    <a href="../about.html">about</a>
                    <ul>
                        <li><a href="About.html">Restaurant</a></li>
                        <li><a href="Chef.html">Chef</a></li>
                    </ul>
                </li>
                <li>
                    <a href="../menu.html">MENU</a>
                    <ul>
                        <li><a href="lunch.html">Lunch</a></li>
                        <li><a href="dinner.html">Dinner</a></li>
                        <li><a href="wine.html">Wine List</a></li>
                    </ul>
                </li>
                <li>
                    <a href="../reviews.html">REVIEWS</a>
                    <ul>
                        <li><a href="reviews.html">Press/Media</a></li>
                    </ul>
                </li>
                <li>
                    <a href="contact.html">CONTACT</a>
                    <ul>
                        <li><a href="reservations.html">Reservations</a></li>
                    </ul>
                </li>
            </ul>
        </div>
Thank you for your help.

Answer 1

Hello Greg,
using your source code I got this:
what means something like: This document uses the following files not contained in this site. Looking deeper I found some of these
<script src="file:///Macintosh%20HD/Applications/Adobe%20Dreamweaver%20CC/Configuration/BuiltIn/Fluid%20Grid%20 Layout/respond.min.js"></script>, what means your path is not correct. file: /// "says" your JS links are pointing to your hard drive, which nobody can see except you.
Please use the correct pathes and come back.
Hans-Günter