#resizer {
  width: 10px;
  cursor: col-resize;
  background-color: transparent;
  flex: 0 0 auto; /* Ne pas grandir ni rétrécir */
}

#resizer:hover, #resizer.resizing {
  background-color: rgba(0, 0, 0, 0.1); 
}
/* Adaptation pour le thème Dark */
html.dark #resizer:hover, html.dark #resizer.resizing {
  background-color: rgba(255, 255, 255, 0.1);
}