HTML - Transparent Iframe

<body> <h1><a rel="nofollow" href="http://www.toxiclab.org/tutorial.asp?ID=51" >Transparent Iframe</a></h1> <p>I suppose you have basic html skills and you know all about iframes, but do you know how to setup iframe to be transparent?!.</p> <p><a href="http://www.tutcity.com/">More Tutorials</a></p> </body>