The question is simple: it is a good practice we have one “master CSS file” (the same concept of master pages) and, for each page, one specific and unique CSS file?
I ask this because I think that it’s useless to have very different code on a page that will not use it — can you all understand me?
The greatest advantage when using one master CSS file than having a master and several specific CSS files is that
The redundant / unused style rules in your master file may be too little to matter much.