I want to have a transparent text to be able to see background of that text, Imaging that there is an h1 on body and body have a background, I want to see the background that is under h1 with a background:white and color:transparent
something like this:

But when I set color to transparent, it will show the h1 background color
Please see this fiddle
there are another question here, But this is not working in Firefox, and I need to have something that works in all major browsers!