body {
  margin: 0;
}

#drop_zone {
  width: 100vw;
  height: 90vh;
  max-width: 100%;
  max-height: 100%;
  text-align: center;
}

#fileElem {
  display: none;
}

#fileSelect {
  text-decoration: none;
  margin-right: 10px;
  padding: 10px;
  background-color: #f1f1f1;
  border-radius: 10px;

  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

#dropText {
  display: inline;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

#result {
  position: relative;
  top: 60%;
  transform: translateY(-50%);
}