.imup {
  border: 1px solid #888;
  background-color: #ddd;
  border-radius: 5px;
  color: #fff;
  width: auto;
  height: 200px;
  margin: 20px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.upload-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 16px;
  color: #333;
}
.preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}