img.thumb {
  padding: 5px;
  margin: 0px;
  filter:alpha(opacity=70);
  opacity:0.7;
  -moz-opacity:0.7;
}

img.thumb:hover {
  background-color: #333;
  filter:alpha(opacity=100);
  opacity:1.0;
  -moz-opacity:1.0;
}

div#content {
  text-align: center;
}

div#dragon {
  width: 786px;
  margin-left: auto;
  margin-right: auto;
}