Changing Orientation & Keeping Image Positions [SOLVED]

Changing Orientation & Keeping Image Positions [SOLVED]

On my Android phone, as well as on the iPhone of the guy who owns the site, this page views OK in portrait mode.

http://gmjones.org/tmp/index.html

I don't think the device would ever need to be rotated to landscape but when it is rotated, there is an obvious change in the arrangement of the images.

Are there any general rules for arranging images if the device is going to be rotated?