#scroll_up, #scroll_dn {
  position: fixed;
  right: 5px;
  width: 35px;
  height: 35px;
  cursor: pointer;
  display: none;
  z-index: 999;
  background:  #026CB1 url('../img/sc_arrow.png') center no-repeat;
}

#scroll_up {
    bottom: 50px;
}

#scroll_dn {
    bottom: 10px;
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}