.bsi_maps {
    height: 500px;
}

.bsi_maps .map {
  height: 500px;
	position: relative;
	z-index: 0;
}

.map-scroll:before {
  content: 'Zoom : ctrl + molette';
  position: absolute;
  top: 50%;
  left: 50%;
  font-size: 34px;
  color: #FFF;
  transform: translate(-50%,-50%);
  text-shadow: 0px 0px 2px black;
  z-index: 9999;
}

.map-scroll:after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  content: '';
  background: #00000061;
  z-index: 999;
}

.leaflet-popup-content {
  font-size: 15px;
}