When you export to html the program tries to center the graphics on the page. This causes a problem when you iframe to drop the page onto another page. The output html is not aligned properly.

I recently had to integrated and xara generated page into another page and it did not align properly. I had to play with the left: style to get the page to display right.

It would make it a lot easier to have full control of alignment and page width in the html export filter. Or just change the filter to export every thing aligned to the left....