title: Should I set div demensions using EM's?
body: <p>I am going to be giving users the option of changing the size of the text via some controls on the page. What I would like to know is if the user changes the size too much, will the text start to wrap around in the div's incorrectly and should I be using EM's to specify my div width / height to avoid this issue?</p>
  
  <p>Thanks in advance.</p>