how to make page block transparent

I would like some in making my page blocks like on the profile block transparent. enough for one to see all the info but also enough to see the image behind it.

Thanks

[edit]that's of course depending where you want it; for certain modules you may have to edit the

unit.html under /modules/boonex/"module of edit"/templates/base

allowtransparency="true" to the html

details please... i am really just looking to make profile blocks have a small transparency enough to show a background images

 Have you tried searching this site using the search box above?

You may have to experiment;

this is what I use to make my HTML boxes transparent.

<iframe allowtransparency="true" name="I1" src="http://www.mysite.com/block.htm" frameborder="0" height="340 scrolling="no" width="700">