SInce there's no ad serving forum, figured I'd try here. Been searching all over to find answer to a simple question.
I am using "third party ads" (basically just my house html ads) via DFP, and all I want to do is use the same external css file to format the ads.
I can get inline to work if each ad has the style info in it, but that's a lot of extra work. I can't get any external css to work regardless of whether it's referenced in the ad, or from the page the ad gets displayed on.
Since google uses its own iframes to display the ad, does this make it not possible? (that just can't be. I'm missing something).