div.dropable {
  border: 2px dashed #cdcdcd;
  border-radius: 12px;
  background-color: #F2F2F2;
  text-align: center;
}

/*
div.dropable .over {
  border: 2px dashed black;
  border-radius: 12px;
  background-color: #E2E2F2;
}
*/

div.dropable input {
  display: none;
}

div.dropable.over span.content-out {
  display: none;
}
    
div.dropable span.content-over {
  display: none;
}

div.dropable.over span.content-over {
  display: block;
}