#preloader {
  position: fixed;
  inset: 0;
  background: #111;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
}

#bar-container {
  width: 320px;
  height: 18px;
  background: #333;
  border-radius: 9px;
  overflow: hidden;
  margin-bottom: 10px;
}

#bar {
  width: 0%;
  height: 100%;
  background: #4caf50;
  transition: width 0.15s linear;
}