.drop-zone {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  z-index: 6;
  position: fixed;
}

.overlay {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  z-index: 7;
  position: fixed;
  pointer-events: none;
  border: 8px dashed #0087f7;
  font-size: 2rem;
  color: white;
  text-shadow: -8px -8px 8px #000, 8px -8px 8px #000, -8px 8px 8px #000,
    8px 8px 8px #000;
  display: flex;
  justify-content: center;
  align-items: center;
}