滚动条

gistfile1.css

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

scrollbar {
  -moz-appearance: none !important;
  border: none !important;
  background: transparent !important;
}

scrollbar[orient="vertical"] { width: 9px !important; }

scrollbar[orient="horizontal"] { height: 9px !important; }

scrollbar thumb {
  -moz-appearance: none !important;
  border: none !important;
  background: #7D7D7D !important;
  border-radius: 3px !important;
}

scrollbar thumb:hover { background-color: #999 !important; }

scrollbar thumb:active { background-color: #666 !important; }

scrollbar scrollbarbutton, scrollbar gripper { display: none !important; }