.footer {
  font-family: Verdana, Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: bold;
  color: #FFFFFF;
}

a.opacity img {
  filter:alpha(opacity=70);
  -moz-opacity: 0.7;
  opacity: 0.7;
}

a.opacity:hover img {
  filter:alpha(opacity=100);
  -moz-opacity: 1.0;
  opacity: 1.0;
}