note for ie8 quirks

gistfile1.css

/* Both */

li:last-child, li.last-child {
  border: none;
}

/* AND */

li.last-child, li:last-child {
  border: none;
}

/* will be ignored in IE8, but works in ie6, 7 */


/* Need to seperate them */

li:last-child {
  border: none;
}
li.last-child {
  border: none;
}