What could cause the same browser on different PCs to render the same HTML differently?

Question

I\'m stumped. A client and I are both running Firefox 3.0.12 on XP machines. We view the same page in the same browser on different machines and have different results. Note: Al

Answer 1

I know my FF3.0 makes everything look different than other people's because I have it set in Preferences to use a minimum font size of 16. I dont get fine print, I get a pile of legible writing.

Also, being on a Mac, the default fonts are sans serif, whereas on windows everything is serif, which also can change the font widths and heights even further.

If anything on your page is specified with "em" or "ex" units, they are dependent on font size.