@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

resizer[dir="top"],
resizer[dir="bottom"] {
  cursor: ns-resize;
}

resizer[dir="left"],
resizer[dir="right"] {
  cursor: ew-resize;
}

resizer[dir="topleft"],
resizer[dir="bottomright"],
resizer[dir="bottomend"][chromedir="ltr"] {
  cursor: nwse-resize;
}

resizer[dir="topright"],
resizer[dir="bottomleft"],
resizer[dir="bottomend"][chromedir="rtl"] {
  cursor: nesw-resize;
}

resizer[dir="bottomright"][chromedir="ltr"],
resizer[dir="bottomend"] {
  -moz-appearance: resizer;
}