#availability_button {
  background: url(/images/room_availability.gif) 0 0 no-repeat;
  display: block;
  width: 300px;
  height: 60px;
  margin: 0.5em auto;
}

#availability_button:hover {
  background-position: 0 -60px;
}
#availability_button:active {
  background-position: 0 -120px;
}

#availability_button * {
  position: absolute;
  left: -999px;
}


#left_column ul li { padding-bottom: .8em;  list-style-type: none;}