html, body {
  margin: 0;
  padding: 0;
  overflow: auto;
  width: 100%;
  height: 100%;
}

#container {
  position: absolute;
  width: 1920px; /* Tamaño original de la imagen */
  height: 1257px;
  transform-origin: top left;
  transition: transform 0.2s ease;
}

#fondo {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

#zonas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.zona {
  position: absolute;
  width: 180px;
  height: 20px;
  background-color: rgba(0, 0, 0, 0);
  pointer-events: auto;
  cursor: pointer;
  z-index: 10;
}