Assuming iframes is required, the following 2 results were found.
last part shows how to embed using an IFRAME tag which isn't great for CSS styling as you can't do cross-dom acoss child iframes; but it does let you use OpenURL(v_Url, "iframe", "iframe_name") which is good if you have multiple iframes on a page and...
of determining heights and alignment with JS. The following code will work with DIV layers but in this case, also works on iframes: HTML: Horizontally and Vertically Centered Iframe CSS: body { background:red; } iframe { position: fixed; top: 50%;...