.blocks {
  overflow: auto;
}

.thumbnail-block {
  float: right;
}

.img-thumbnail {
  background: #fff center no-repeat;
  display: inline-block;
  width: 90px;
  height: 90px;
  border: 1px solid #DDD;
  margin: 2px 2px 0 2px;
  border-radius: 4px;
  -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075);
}

.img-thumbnail-spinner {
  background-image: url(qrc:/images/Preview/spinner.gif);
  background-size: 28px 28px;
}

.img-thumbnail-error {
  background-image: url(qrc:/images/Preview/error.png);
  background-size: 32px 32px;
}
