JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://maps.googleapis.com/maps/api/js?sensor=false&amp;ext=.js"></script>
<script src="http://www.staff.org.au/infobox.js"></script>
<div id="trackingT-map"></div>

CSS

#trackingT-map {
    height:400px;
    width:400px;
}

JavaScript

var map;
var pop_up_info = "border: 0px solid black; background-color: #ffffff; padding:15px; margin-top: 8px; border-radius:10px; -moz-border-radius: 10px; -webkit-border-radius: 10px; box-shadow: 1px 1px #888;";


google.maps.event.addDomListener(window, 'load', initialize);
    var store_pins = [];
    var pin_marker = [];
    var pin_info = [];
    var pin_infoop = [];

function initialize() {
    var map_center = new google.maps.LatLng(55.144178, -2.254122);


    store_pins = [
        ['Bellingham Co-Op', 55.144178, -2.254122, 'pin', 'bellinghamcoop.jpg', 'Staff at Bellingham Co-Op'],
        ['Leicester Tigers - Kingston Park', 55.018754, -1.672230, 'rugby', 'kingparktigers.jpg', 'Stu with the Leicester Tigers Rugby Team'],
        ['The Hawick PSA Team', 55.421825, -2.797123, 'rugby', 'hawickpsa.jpg', 'The Hawick PSA Team']
    ];

    var myOptions = {
        zoom: 3,
        minZoom: 3,
        center: map_center,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    }

    map = new google.maps.Map(document.getElementById("trackingT-map"), myOptions);

    // Main Loop


        for(i=0;i<store_pins.length;i++)
        {
        var pos = new google.maps.LatLng(store_pins[i][1], store_pins[i][2]);
        var pinIcon = {
            url: 'icons/shirtpin.png',
            //The size image file.
            size: new google.maps.Size(50, 55),
            //The point on the image to measure the anchor from. 0, 0 is the top left.
            origin: new google.maps.Point(0, 0),
            //The x y coordinates of the anchor point on the marker. e.g. If your map marker was a drawing pin then the anchor would be the tip of the pin.
            anchor: new google.maps.Point(25, 20)
        };
        var pinShape = {
            coord: [0,0,50,55],
            type: 'rect'
        };

        pin_marker[i] = new google.maps.Marker(
        {
                position:       pos,
                map:            map,
                title:         ...