Simple Marker Example

<!DOCTYPE html>
<html>
  <head>
    <title>Marker Clustering</title>
    <style>
        /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
        #map {
        height: 100%;
        }

        /* Optional: Makes the sample page fill the window. */
        html,
        body {
        height: 100%;
        margin: 0;
        padding: 0;
        }
    </style>

    <!-- jsFiddle will insert css and js -->
  </head>
  <body>
    <div id="map"></div>

    <!-- Async script executes immediately and must be after any DOM elements used in callback. -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&v=weekly&channel=2"
      async
    ></script>

    <script>

      function initMap() {
        var myLocation = { lat: -28.024, lng: 140.887 };
        var map = new google.maps.Map(document.getElementById('map'), {
        zoom: 7,
        center: myLocation,
        });

        new google.maps.Marker({
            position: myLocation,
            map,
        });
    }
    </script>
  </body>
</html>