table.gallery {
  margin-left: auto;
  margin-right: auto;
}

table.gallery td {
  padding: 1em;
  text-align: center;
  vertical-align: middle;
}

table.gallery img.tn {
  padding: 0.4em;
  border: 1px solid #000;
}

div.gallery {
  clear: left;
  width: 80%;
  text-align: center;
  margin-bottom: 1em;
  margin-left: auto;
  margin-right: auto;
}

div.gallery div {
  float: left;
}

div.gallery img.tn {
  margin: 9px;
  vertical-align: middle;
  padding: 0.4em;
  border: 1px solid #000;
}