Google DFP not sizing correctly

Hi

I've recently added google dfp to my site, and it all works perfectly, except when the site goes down to mobile css on an iPhone, the dfp is slightly cut off on the right hand side.

Is there a fix for this? The website is http://www.wcrdev.com/~coastliv/

Thanks

Checked with my phone and your site worked correctly, take a snapshot on yours please.

I've attached a screenshot, as you can see its slightly cut off on the right hand side.

Thanks for the snapshot, I can see the issue now, however I really have no idea to fix it, because it generates those ads and embeds into your site as iframes with fixed sizes so the template can't control it.