.svg-salle {
  transition: fill .3s;

  fill: grey;
  stroke: none;
  stroke-width: 1px;
  stroke-linecap: butt;
  stroke-linejoin: miter;
  stroke-opacity: 1;
}

.svg-salle:hover {
  fill: lightblue;
}

.current-room {
  fill: blue;
}