I have an iframe with a width and a height of 400px. I would call a web page in the iframe, but I would adjust the width of the source to the size of my iframe. For height this will not be a problem, I can set up an elevator. Below is my code.
<div id = popup><iframe src=\'http://www.google.fr' scrolling=\'yes\' name=\'google\' align=\'center\' marginwidth=\'auto\'></iframe></div>