Transparent background

[Lex Luthor]

I am having trouble making my backgrounds transparent instead of white..I've tried to search and im not finding anything thats easy to understand. Here is my iframe

<iframe width="415"
height="460" src="http://www.freewebs.com/rosagirl33/Main.htm"
name="main" style="position:absolute;left:450; top:270"scrolling="FALSE"iframe
frameborder="0"border+0>iframe>

Can some one help please Thanks in advance

[Twey]

background-color: transparent;

You will also need allowtransparency="true" for IE.

That's some seriously mucked-up mark-up. Meet my friend, Mr. Validator.