<div id="googleMap" style="width:500px;height:400px;"></div>

<script>
function myMap() {
var mapProp= {
    center:new google.maps.LatLng(51.4156862, 5.47184070000003),
    zoom:5,
};
var map=new google.maps.Map(document.getElementById("googleMap"),mapProp);
}
</script>


<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDVx4lLEkqr1cFx0VQUPehEOa7OTlvPgO8&callback=myMap"></script>