How to display multiple ul inside li as single block

See more:

CSS

Hi I have HTML and CSS structure like this, in that i need to group the UL below LI(id=files) as single block, but its showing as sub menu. help me to solve this problem. thanks

CSS:

#dockRight
{
    margin: 0px;
    padding: 0px;
    list-style: none;
    position: fixed;
    top: 0px;
    height: 100%;
    z-index: 100;
    background-color: #f0f0f0;
    right: 0px;
}
#dockRight  li
{
    width: 40px;
    height: 120px;
    margin: 0 0 1px 0;
    background-color: red;
    background-repeat: no-repeat;
    background-position: left center;
}
#dockRight  li:hover ul
{
    display: block;
}
#dockRight  li ul
{
    position: absolute;
    top: 0px;
    left: -180px;
    z-index: -1;
    width: 180px;
    display: none;
    background-color: #F1F1F1;
    border: solid 1px #969696;
    padding: 0px;
    margin: 0px;
    list-style: none;
}
HTML:
<ul id="dockRight">
    <li id="files">
        <ul class="free">
            <li class="header"><a href="#" class="dock">Dock</a><a href="#" class="undock">Undock</a>Files</li>
            <li>
                <div>
                    <table>
                        <tr>
                            <td>
                                <ul>
                                    <li>List 1 inside table
                                        <div>
                                            <ul>
                                                <li>Final LI 1</li>
                                            </ul>
                                        </div>
                                    </li>
                                    <li>List 2 inside table
                                        <div>
                                            <ul>
                                                <li>Final LI 2</li>
                                            </ul>
                                        </div>
                                    </li>
                                </ul>
                            </td>
                        </tr>
                    </table>
                </div>
            </li>
        </ul>
    </li>
</ul>