jQuery Drop Line Tabs Transparency

[amber1012011]

1) Script Title: jQuery Drop Line Tabs

2) Script URL (on DD): http://www.dynamicdrive.com/style/cs...rop_line_tabs/

3) Describe problem:Having issue using Transparency on the jQuery Drop Line Tabs sub-menu.

I am trying to apply the following transparency code:

]
opacity:0.8;
filter:Alpha(opacity=80);
]

To this class in the CSS:

[

/* Sub level menus*/
.droplinetabs ul li ul{
position: absolute;
z-index: 100;
left: 0;
top: 0;
background: #296197; /*sub menu background color */
visibility: hidden;

}

]
When I add the code only the first sub-menu level appears transparent and the other sub-menu levels don't appear at all. What do I need to do so that I can make all the sub-menu levels transparent and show.