I would like the 'background' colour to be different on 2nd and all other levels of my csshover.htc menu - I want the top level 'default' menu to have a white background, but I would like the pop-outs to have a coloured background when they appear (ie, not just on mouseover)

Here is the css I'm using to style the menu:

Code:
#lhmenu {
    width: 12em;
}
#lhmenu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
#lhmenu a, #lhmenu h2 {
    display: block;
    margin: 0;
    font-family: Geneva, Arial, Helvetica, sans-serif;
    font-size: 12px;
    font-weight: normal;
    line-height: 20px;
}
#lhmenu h2 {
    font-size: 12px;
    font-weight: normal;
    color: #333333;
}
#lhmenu a {
    text-decoration: none;
    background-color: #FFFFFF;
    margin: 0px;
    padding-top: 2px;
    padding-right: 2px;
    padding-bottom: 4px;
    padding-left: 4px;
}
#lhmenu a:hover {
    color: #FFFFFF!important ;
    background-color: #666666;
}
#lhmenu ul ul ul {
    position: absolute;
    top: 0;
    left: 0;
}
#lhmenu li {
    position: relative;
    background-color: #FFFFFF;
    width: 12em;
}
#lhmenu ul ul ul {
    position: absolute;
    top: 0;
    left: 100%;
    width: 100%;
}
div#lhmenu ul ul ul 
{display: none;}
div#lhmenu ul ul li:hover ul 
{
    display: block;
    background-color: #FF0000;
}
div#lhmenu ul ul ul,
div#lhmenu ul ul li:hover ul ul
{display: none;}
div#lhmenu ul ul li:hover ul 
{display: block;}
div#lhmenu ul ul ul,
div#lhmenu ul ul li:hover ul ul
{display: none;}
div#lhmenu ul ul li:hover ul,
div#lhmenu ul ul ul li:hover ul
{display: block;}