• body { font-size: 69% } then later font-size: 110%
• <table> is used for layout.
• The <table>'s three columns make it hard to fit narrower windows.
• Too much navigation and repeated information on every page.

• <table> for layout
• Over-​zealous navi­gation
• Exces­sive page width
• Font shenan­igans

This might be the result of using default styles of a Content Management System. I'm wary of such HTML-generating code, as the casual user might assume that the default mark-up and style are already okay.