title: Font-Size issue
body: <p>I set the font-size of a table-data with JQuery to 70px but when I inspect the element with firebug it has 83px height, so my question is, how can I know what will be the real height of the table-data when I set the font-size with an specific value.
  Inspecting the element with firebug I realize that the extra height is because of the special characters like "Ñ" and "j"
  PD: The table-data it hasn't have any padding, margin, or border.</p>