One important matter is to make sure your resume does not contain nested tables, for two reasons. The first is that nested tables make it harder for automated software to process the relevant data. The other is that nested tables are hard to get right, and even harder to edit, especially on mobile devices and online platforms, to the point that they often do not display properly.
Another important caveat is, when you give someone your resume digitally, send it as PDF. PDF looks exactly the same on all computers, whether they're using OSX, Windows, a *nix product, iOS, Android,... It's basically a printed version of your resume, so you won't have any surprised like the user not having your special font or your tab stops being mangled.