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

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


.blue-ball {
  width: 16px;
  height: 16px;
  background-color: blue;
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
}

.restaurant-icon {
  width: 32px;
  height: 32px;
  background-image: url("https://geoboom.de/harz/food.png");
  background-size: contain;
  background-repeat: no-repeat;
  border: 2px solid rgb(255, 2, 2);
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(0,0,0,0.3);
}