title: What CSS tags the width of a span?
body: <p>I am using a table as a calendar (well, jquery UI datepicker is) and each cell is significantly larger, specifically in width,  than I expect it to be.  </p>
  
  <p>Each of the td's with a date in them is about twice as wide as the actual characters that make up the day.   All this is is a span tag within a td.   When investigating with Firebug,  the base size of the span has this extra width in it.  There is no padding, margin, border affecting it. </p>
  
  <p>What CSS defines the width of my span?  Shouldn't it hug the text it contains?</p>