html, body {
  margin: 0;
  color: #333;
  height: 100%;
  overflow: hidden;
}

#loader {
  position: absolute;
  width: 160px;
  height: 160px;
  line-height: 160px;
  margin: -80px 0 0 -80px;
  left: 50%;
  top: 50%;
  z-index: 999;

  background: #2f2f2f;
  color: white;

  font-family: "HelveticaNeue-Bold", "Helvetica-Bold" ,"Droid Sans";
  font-size: 80%;
  text-align: center;
  border-radius: 10px;
}

#map {
  width: 100%;
  height: 100%;
}

#playground {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 3;
  pointer-events: none;
}

#playground.hidden {
  display: none;
}

#playground > div {
  pointer-events: auto;
}