Opacity in IE, Firefox and Chrome

pngs and other images require separate styling attributes for IE and Firefox. Below are the two attributes that will allow transparency to be supported for both browsers:

.menu .hover .menuitems
{
 filter: progid:dximagetransform.microsoft.alpha(opacity=80);
 opacity: 0.8;
}

Note: the "filter" attribute is used for IE, and the "opacity" attribute is used for FF.

It must also be noted that this will actually make the entire image transparent so all text found within it will most likely not have the desired effect.

This is different from images that have transparency in it.