> If I add 'background-color: transparent;', the table cells > using these classes have a black backround. hi rob that's a known nn4 bug, you have to assign some real colour http://richinstyle.com/bugs/netscape4.html#background > NS 4.x doesn't seem to pay much attention to the margin declarations that's right, you can't remove body margins in nn4 with css http://richinstyle.com/bugs/netscape4b.html#margin rudy