iframe positioning is fustrating me

Ok well i'm working on a simple intro page to a site. And any time i
resize the browser or have a different resulution the iframe moves out
of place. Any help would be appriciated. And here is the site .

http://www.usawarez.us/speel3k/

try using CSS instead of an iframe.
http://www.buildtolearn.com/learn-yo...rough-css.html