body {
  font-family: Arial, sans-serif;
}

.cell.active {
  background-color: #cce5ff !important;
  border-color: #004085 !important;
}

.volume-bar {
  width: 100%;
  height: 10px;
  background: #ddd;
  margin-top: 10px;
  position: relative;
}

.volume-fill {
  height: 100%;
  background: #28a745;
  width: 50%;
}

#camera {
  transform: scaleX(-1);
  width: 640px;
  height: 480px;
}