title: What's the Outlook default stylesheet for incoming mail?
body: <p>Outlook seems to have certain CSS styles built-in for incoming mail. What are those styles? Is there a default stylesheet one can look at? If not, what's a good way to deal with that? Trial and error?</p>
  
  <p>Note, that Gmail strips <code>&lt;style&gt;</code> tags which means that those cannot be used if Gmail must be supported.</p>