Compared to all of you I am a real beginner, which is reflected in my question (I hope you don't mind):
Working in just HTML, I put together a page that contains 2 zip code charts. The charts are excel worksheets saved as HTML. I simply nested them within the surrounding code.
But on my monitor and on one other person's monitor the zip code charts appear to 'tilt' to the right. If anyone understands why this happens and how to fix it I'd be very grateful.
The link to the page is below.