cant see the actual map when using google maps api

Question

<!DOCTYPE>

<style type="text/css">
  body {
    margin: 0;
    padding: 10px 20px 20px;
    font-family: Arial;
    font-size: 16px;
  }

  #map-container {
    padding: 6px;
    border-width: 1px;
    border-style: solid;
    border-color: #ccc #ccc #999 #ccc;
    -webkit-box-shadow: rgba(64, 64, 64, 0.5) 0 2px 5px;
    -moz-box-shadow: rgba(64, 64, 64, 0.5) 0 2px 5px;
    box-shadow: rgba(64, 64, 64, 0.1) 0 2px 5px;
    width: 100%;
  }

  #map {
    width: 100%;
    height: 98%;
  }

</style>

<script src="http://maps.google.com/maps/api/js?sensor=false"></script>

<script type="text/javascript" src="data/weblandmark.json"></script>
<script type="text/javascript" src="js/markerclusterer.js"></script>

<script type="text/javascript">
  function initialize() {
    var center = new google.maps.LatLng(48.133333, 11.566667);

    var map = new google.maps.Map(document.getElementById('map'), {
      zoom: 3,
      center: center,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });

    var markers = [];
    for (var i = 0; i < 100; i++) {
      var dataPhoto = data.weblandmarks[i];
      var latLng = new google.maps.LatLng(dataPhoto.latitude,
          dataPhoto.longitude);
      var marker = new google.maps.Marker({
        position: latLng
      });
      markers.push(marker);
    }
    var markerCluster = new MarkerClusterer (map, markers);
  }
</script>

I am using maps api with markercluster to show many places I can see the zoom bar, and also the cluster generated by markercluster but not the actual map image why?

Answer 1

Try adding the following CSS:

html { height: 100%; }
body { height: 100%; }

Answer 2

You could try making your map like this:

//The options for the google map
var mapOptions = {
    zoom: 3,
    center: center,
    mapTypeId: google.maps.MapTypeId.ROADMAP //Or whatever you want
};

var map = new google.maps.Map(document.getElementById('#map'), mapOptions);

This is nitpicky but it makes it alot easier to work with the map if you have to add a lot of information to it later (markers/listeners/zooms after load)