#drop-zone {
  border: 2px dashed #ccc;
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.3s, border-color 0.3s;
}

#drop-zone.dragover {
  background-color: #f0f8ff;
  border-color: #00aaff;
}

#thumbnail-preview img {
  max-width: 200px;
  max-height: 200px;
  margin-top: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

#remove-button {
  margin-top: 10px;
  padding: 5px 10px;
  background-color: #ff6666;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}