Blog Width

Oh yea, I am using this classic theme.

I’m curious since the only thing on the page is the blog and the photo, why you don’t just use the photo in the blog header and forget the iframes?

That said, if you want to change the width, you need to go to the Presentation editor and change the width of the appropriate things in the style.css file. (What those things are is going to depend on what you put in the iframe – the whole blog body, just the post, etc.)