title: Font hierarchy and ability to detect user machine font within CSS? Are there font hierarchies inside CSS?
body: <p>A UX designer at my company has provided me a list of fonts, that he describes as a hierarchy.
  The list of fonts I was given were:</p>
  
  <p>"font-family:
  "Palatino Linotype", "Times New Roman", Times, "Book Antiqua", Palatino, serif"</p>
  
  <p>The logic being that we'll assume those fonts are pre-loaded on the user's machine and that if one isn't available it goes down the list to the next one.</p>
  
  <p>I have not heard of this in CSS before.  I'm aware one can customize font family, but I thought that involved loading up a ttf file.</p>
  
  <p>Can someone point me to a resource on how to direct such a hierarchy of native texts on a computer?
  Or is my designer full of it?</p>