JSFiddle - React, Tailwind, and code Playground

HTML

<div id="panel">
    <input id="address" type="textbox" value="england london">
    <input type="button" value="Geocode" onclick="codeAddress();">
</div>
<div id="map-canvas">
    <img src="img/src.jpg" />
</div>

CSS

#map-canvas {
    height: 100px;
    width: 100px:
}

JavaScript 1.7

var geocoder;
    var map;

    function initialize() {
        geocoder = new google.maps.Geocoder();
        var latlng = new google.maps.LatLng(-34.397, 150.644);
        var mapOptions = {
            zoom: 15,
            center: latlng
        }
        map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
    }

    function codeAddress() {
        initialize();
        var address = document.getElementById('address').value;
        geocoder.geocode({
            'address': address
        }, function(results, status) {
            if (status == google.maps.GeocoderStatus.OK) {
                map.setCenter(results[0].geometry.location);
                var marker = new google.maps.Marker({
                    map: map,
                    position: results[0].geometry.location
                });
            } else {
                alert('Geocode was not successful for the following reason: ' + status);
            }
        });
    }

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