body {
  background:rgb(33, 33, 33);
  }
#map {
  background:#1c1c1c;
  position:absolute;
  top:0;bottom:0;left:0;right:0;
  }
.overlay {
  position:absolute;
  top:0;right:0;left:0;
  }
.leaflet-popup-content {
  color:#404040;
  }

@media only screen and (max-width:640px) {
  .about {
    border-top:1px solid rgb(255, 255, 255);
    }
  .about .mapbox {
    margin-bottom: 40px;
    }
}