title: OS-Specific CSS?
body: <p>In the past, I've seen nearly no difference between CSS in the same browsers on different platforms- pages on Safari on Mac usually look identical to Safari on Windows (and same with FF-Win vs FF-Mac). However, now I'm having an issue where both Mac browsers are pushing some elements off by a pixel compared to their PC counterparts. </p>
  
  <p>Is there a way to select a browser on a specific OS to apply CSS to? Maybe something like conditional stylesheets, only for operating systems instead of browsers?</p>