Page layout bug: disappears mysteriously when the source is saved locally.

This page[1] renders  badly in Dillo - the text wraps  to a width much
wider than  the browser window.  But  when I save the  page locally it
renders fine!  How  is this possible?  The only CSS  is a small inline
<style>, which rules out the obvious guess of a style sheet failing to
load.  Fixing all the relative URLs to absolute ones has no effect.

I'm mystified.  Any ideas?

Regards,

Jeremy Henty

[1] http://thbecker.net/articles/rvalue_references/section_08.html