I have a problem with iFrames resizing to the full page width.
The embed goes something like this:
<iframe style="float: right;" src="http://www.youtube.com/embed/g7_x3Mz04tY?autoplay=0&rel=0&controls=0&modestbranding&showinfo=0" frameborder="0" width="480" height="270"></iframe>
This displays perfectly on the preview, but resizes to the full page width when published. I've updated my Media settings to have a maximum embed size of 480x270, this didn't help.
Any ideas what else I should try?