<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<title>Adding controls to the map</title>
html, body, #map-canvas {
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDfNk5eVWmQB9e6ApnWzICLNIY5lUXpOBw&language=vi"></script>
<script language="javascript">
center: new google.maps.LatLng(10.771971, 106.697845),
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
google.maps.event.addDomListener(window, 'load', initialize);
<div id="map-canvas"></div>