.grid {
  width: 100%;
  height: 250px;
}

.grid-msg-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
}

.grid-msg-overlay .msg {
  opacity: 1;
  position: absolute;
  top: 20%;
  left: 20%;
  width: 60%;
  height: 50%;
  background-color: #eee;
  border-radius: 4px;
  border: 1px solid #555;
  text-align: center;
  font-size: 24px;
  display: table;
}

.grid-msg-overlay .msg > .center {
  display: table-cell;
  vertical-align: middle;
}

.grid input[type="file"] {
  font-size: 14px;
  display: inline-block;
}