JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&amp;signed_in=true"></script>

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

CSS

html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }

JavaScript

function initialize() {
        // var myLatlng = new google.maps.LatLng(val.coords.split(',')[0].trim(),val.coords.split(',')[1].trim());
        var myLatlng = new google.maps.LatLng(-25.363882,131.044922);

        var mapOptions = {   // lbc add
          zoom: 4,
          center: myLatlng
        };

        var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);  // lbc add

        var infowindow = null;
        var contentString = '<div id="content">'+
                    '<div id="siteNotice"> content'+
                    '</div>';


        var infowindow1 = new google.maps.InfoWindow({
            content: contentString  //,
            //  maxWidth: 250
        });

        var marker1 = new google.maps.Marker({
            position: myLatlng,
            map: map
            //  icon: image,
        });

        google.maps.event.addListener(marker1, 'click', function() {
            infowindow1.open(map,marker1);
        });

        google.maps.event.addListener(map, 'click', function(){
            infowindow1.close(map, marker1);
        });

}

google.maps.event.addDomListener(window, 'load', initialize);