.block {
  display: inline-block;
  width: 10em;
  height: 10em;
  line-height: 10em;
  margin: 1em 1em 0 0;
  border: 10px solid transparent;
  -moz-border-radius: 5px;
  -webkit-border-radius: 5px;
  border-radius: 5px;
  background: #ddd;
  text-align: center;
  cursor: pointer;

  -moz-box-shadow: none;
  -webkit-box-shadow: none;
  box-shadow: none;

  -webkit-transition: background-color .3s ease-out;
  -moz-transition: background-color .3s ease-out;
  transition: background-color .3s ease-out;
}

.block:hover {
  background: #9e9;
  border-color: transparent;
}

.block:target {
  cursor: default;
  background: #7d7;
}

.block img {
  display: inline-block;
  max-width: 10em;
  max-height: 10em;
  vertical-align: middle;
}

.stuffbox {
  padding-top: 1em;
  max-width: 90ex;
  clear: both;
}

.blocks {
  padding-bottom: 1em;
  overflow: auto;
}

.description {
  float: left;
  overflow: hidden;
  max-height: 0;
  visibility: hidden;
}

.block:target + .description {
  transition: max-height 2s ease-in;
  visibility: visible;
  clear: both;
  max-height: 2000px;
}