/* waiter loading */
.overlay {
    background: #dddddd; 
    display: none;
    position: absolute;
    top: 0;         
    right: 0;
    bottom: 0;
    left: 0;
    opacity: 1;
    z-index: 999;
    overflow: hidden;
}
.overlay-content {
  position: fixed;
  font-weight: bold;
  font-size: 20px;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -40%);
}
.bar {
  border: 1px solid #666;
  height: 20px;
  width: 100%;
}
.in {
    animation: fill 7s linear 1;
    height: 100%;
    background-color: #2F3B52;
}
@keyframes fill {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}