div.imged-large img {
  max-width:480px;
  max-height:480px;
  width: auto;
  height: auto;
}

div.imged-medium img {
  max-width:225px;
  max-height:225px;
  width: auto;
  height: auto;
}

div.imged-small img {
  max-width:150px;
  max-height:150px;
  width: auto;
  height: auto;
}

div.imged-thumbnail img {
  max-width:100px;
  max-height:100px;
  width: auto;
  height: auto;
}