<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<style>
#googleMap {
width: 100%; /* Span the entire width of the screen */
height: 500px; /* Set the height to 400 pixels */
-webkit-filter: grayscale(100%);
filter: grayscale(100%); /* Change the color of the map to black and white * /
}
</style>
<div id="googleMap"></div>
<!-- Add Google Maps -->
<script src="http://maps.googleapis.com/maps/api/js"></script>
<script>
var myCenter = new google.maps.LatLng(46.205057, 6.143145);
function initialize() {
var mapProp = {
center:myCenter,
zoom:12,
scrollwheel:true,
draggable:true,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("googleMap"),mapProp);
var marker = new google.maps.Marker({
position:myCenter,
});
marker.setMap(map);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>