Hi, I notice that when I embed content via the File resource type, it looks better in Firefox and Chrome than it does in IE. Basically, IE puts a border around the iframe, but more importantly it adds space between the bottom of the iframe and the Moodle footer. Firefox and Chrome don't waste this extra space, so there's more screen space for the embedded content
I haven't explored yet how I might be able to compensate for this difference by using a custom theme, but I thought I'd ask in case anyone already knows how to handle it.