#drop-area {
  border: 2px dashed #ccc;
  border-radius: 20px;
  width: 480px;
  margin: 50px auto;
  padding: 20px;
}

#drop-area.highlight {
  border-color: purple;
}

#gallery {
  margin-top: 10px;
}
#gallery img {
  width: 150px;
  margin-bottom: 10px;
  margin-right: 10px;
  vertical-align: middle;
}

#fileElem {
  display: none;
}