Center Aligning Cakesliced Iframe Code? :(

<div
style="overflow: hidden; width: 292px; height: 53px; position: relative;"
id="i_div">
< iframe name="i_frame"
src="mysite"
style="border: 0pt none ; left: -810px; top: -431px; position: absolute; width: 1260px; height: 666px;"
scrolling="no"></iframe></div>


This is my cropped iframe code, anyone know what i need to add in order to center it? ive tried the obvious center align as you would to a normal element but it wont work???

^edited out url as would let me post with it...