A transparent Submenu Item?

[enhung]

I've been working on this transparent Submenu item.

I managed to hover the dynamic item menu, and link it with a image url. It
shows when hovering on it.

My problem is how to put fiter:alpha(opacity=40) into a Css file.

I use the Menu IMG to control it, but it doens't work. So, I need help to
deliver this visual effect.

I am kind of newbie in this. Thanks.

 

[enhung]

This is the webpage for the reference of look.

http://www.shearman.com/home.aspx

Well, I know they probaby have their own menu control. I am just wondering
if that could be done by setting the menu control in VWD.

Thanks.