[draggable] {
  -moz-user-select: none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  /* Required to make elements draggable in old WebKit */
  -khtml-user-drag: element;
  -webkit-user-drag: element;
}
.column {
  min-height: 40px;
  max-width: 800px;
  padding:5px;
  background-color: #1b809e;
  text-align: center;
  cursor: move;
  margin: 10px auto;
    color: #ffffff
}
.column.over {
  border: 2px dashed #000;
}
.hid {
    border-color: #FF0E00;
}