JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://maps.googleapis.com/maps/api/js?sensor=false&amp;libraries=geometry,places&amp;ext=.js"></script>
<div id="map_canvas" style="width:750px; height:450px; border: 2px solid #3872ac;"></div>

CSS

html, body, #map_canvas {
    height: 500px;
    width: 500px;
    margin: 0px;
    padding: 0px
}

JavaScript

var geocoder;
var map;

function initialize() {
    var map = new google.maps.Map(
    document.getElementById("map_canvas"), {
        center: new google.maps.LatLng(37.4419, -122.1419),
        zoom: 13,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    });

setMarkers(map,locations);


}
google.maps.event.addDomListener(window, "load", initialize);
var locations = [
  ['Bondi Beach', -33.890542, 151.274856,,, 'Bondi Beach', 4],
  ['Coogee Beach', -33.923036, 151.259052,,,'Coogee Beach', 5],
  ['Cronulla Beach', -34.028249, 151.157507,,,'Cronulla Beach', 3],
  ['Manly Beach', -33.80010128657071, 151.28747820854187,,, 'Manly Beach', 2],
  ['Maroubra Beach', -33.950198, 151.259302,,,'Maroubra Beach', 1]
];
function setMarkers(map, locations) {
    var bounds = new google.maps.LatLngBounds();
    for (var i = 0; i < locations.length; i++) {
        var item = locations[i];

        var myLatLng = new google.maps.LatLng(item[1], item[2]);
        bounds.extend(myLatLng);
        var address = item[5];

        var marker = new google.maps.Marker({
            position: myLatLng,
            map: map,
        });

        var content = address;

        var infowindow = new google.maps.InfoWindow()

        google.maps.event.addListener(marker, 'mouseover', (function (marker, content, infowindow) {
            return function () {
                infowindow.setContent(content);
                infowindow.open(map, marker);
            };
        })(marker, content, infowindow));
        google.maps.event.addListener(marker, 'mouseout', (function (marker, content, infowindow) {
            return function () {
                infowindow.close();
            };
        })(marker, content, infowindow));

    }
    map.fitBounds(bounds);
}