div.thumbnails.per4 > div:nth-child(4n+1) {
  clear: left;
}
div.thumbnails {
  margin-top: 10px;
}

.drawingBuffer {
  display: none;
}
.hide {
  display: none;
}
.signature {
    border: dashed;
    border-width: 2px;
    margin-bottom: 10px;
}