.fd-zone {
  position: relative;
  overflow: hidden;
  //width: 15em;
  text-align:center;
}

.fd-file {
  opacity: 0;
  font-size:118px;
  position: absolute;
  right: 0;
  top: 0;
  z-index: 1;
  padding: 0;
  margin: 0;
  cursor: pointer;
  filter: alpha(opacity=0);
  font-family: sans-serif;
}

.fd-zone.over {border-color: maroon;}