This question is somewhat related to this forum. Otherwise, please let me know a good iframe forum:
I saw a web design like this:
With the same document there are three sections:
1) main body z-index =0
2) iframe z-index = 100 opacity=50%
3) div popup z-index = 500
It behaves like this:
You got the div like a popup (on top), the iframe 50% opacity to allow looking through to see the main body text.
In this case, is the iframe necessary? And is the iframe employed reasonably for this case?