I agree that authors suck at font choice, text size, line length, line height, text/background color & contrast, etc. I generally do not specify any in document

I agree that authors suck at font choice, text size, line length, line height, text/background color & contrast, etc. I generally do not specify any in documents I write, instead the client will render the document according to the user settings; this also reduces the file size. (In fact, I would even want to ensure most of them will work on Lynx, too.) (Also, many thing I write I use plain ASCII text files anyways; that is far more portable than HTML anyways) It need on the side of users not only because authors are demonstrably terrible at user experience, but also the user may wish to override anything.