index.html

<style type="text/css">
#map {
  width: 400px;
  height: 400px;
}
</style>

<div id="map"></div>

<a href="http://maps.google.com/maps/api/js?sensor=true">
  http://maps.google.com/maps/api/js?sensor=true
</a>

<a href="http://gmaps.js">http://gmaps.js</a>

<script>
var map = new GMaps({
  el: '#map',
  lat: -12.043333,
  lng: -77.028333
});
</script>