We've crafted a good solution for a legacy advertising product that is basically a .jpg and an image map (yes, an image map). This format works well due to high volume, quick turnaround. Using CSS media queries and background positioning we've achieved a more than presentable mobile-friendly version. Unfortunately in addition to being displayed on our website many of our clients display it iframes on their own websites. The responsive version of course fails when framed. We don't have or want access to the clients' web provider's html. Can anyone think of a possible solution?