body,
html {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
}

.preview-info {
  display: none;
}

#preview {
  width: 100%;
  height: 100%;
  border: none;
  background-color: transparent;
}

.error {
  display: block;
  height: 100%;
  background-color: #e9e9e9;
}

.error img {
  display: none;
}