title: Horizontal nav with multiline items and vertical alignment
body: <p>I want to create a horizontal nav that sometimes has multiline link text (not always; it's dynamically generated), and that has all the text vertically centered.</p>
  
  <p>The caveat is that I'd also like to make the nav so that the a elements fill up the entirety of their containing element so that the clickable and hoverable area is much bigger for each link.</p>
  
  <p>Is this possible with just CSS? Thank you.</p>