title: Html column group and title
body: <p>What would be the html markup to achieve the same result as the first table in <a href="http://reference.sitepoint.com/css/tableformatting#tableformatting__tbl_table-objects-display-values" rel="nofollow">http://reference.sitepoint.com/css/tableformatting#tableformatting__tbl_table-objects-display-values</a></p>
  
  <p>I am looking for how they specified the column group and how to set the title (Women, Men). Also, how to target the specific column group in css.</p>
  
  <p>thanks,
  bsr.</p>