JSFiddle - React, Tailwind, and code Playground

by Lawrence Ross

HTML

<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry,places&amp;ext=.js"></script>
<div id="floating-panel">
  <button id="drop" onclick="drop()">Drop Markers</button>
</div>
<div id="map"></div>

CSS

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

#map {
  height: 100%;
}

#floating-panel {
  position: absolute;
  top: 10px;
  left: 25%;
  z-index: 5;
  background-color: #fff;
  padding: 5px;
  border: 1px solid #999;
  text-align: center;
  font-family: 'Roboto', 'sans-serif';
  line-height: 30px;
  padding-left: 10px;
}

#floating-panel {
  margin-left: -52px;
}

JavaScript

var neighborhoods = [{
  lat: 52.511,
  lng: 13.447,
  name: "2007"
}, {
  lat: 52.549,
  lng: 13.422,
  name: "2008"
}, {
  lat: 52.497,
  lng: 13.396,
  name: "2009"
}, {
  lat: 52.517,
  lng: 13.394,
  name: "2010"
}];

var markers = [];
var map;

function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    zoom: 12,
    center: {
      lat: 52.520,
      lng: 13.410
    }
  });
}


function drop() {
  clearMarkers();
  for (var i = 0; i < neighborhoods.length; i++) {
    if (i == 0) {
      html = contentString
    } else {
      html = "html " + i
    }
    addMarkerWithTimeout(neighborhoods[i], html, i * 200);
  }
}
var contentString = '<div id="content">' +
  '<div id="siteNotice">' +
  '</div>' +
  '<h1 id="firstHeading" class="firstHeading">Uluru</h1>' +
  '<div id="bodyContent">' +
  '<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large ' +
  'sandstone rock formation in the southern part of the ' +
  'Northern Territory, central Australia. It lies 335&#160;km (208&#160;mi) ' +
  'south west of the nearest large town, Alice Springs; 450&#160;km ' +
  '(280&#160;mi) by road. Kata Tjuta and Uluru are the two major ' +
  'features of the Uluru - Kata Tjuta National Park. Uluru is ' +
  'sacred to the Pitjantjatjara and Yankunytjatjara, the ' +
  'Aboriginal people of the area. It has many springs, waterholes, ' +
  'rock caves and ancient paintings. Uluru is listed as a World ' +
  'Heritage Site.</p>' +
  '<p>Attribution: Uluru, <a            href="https://en.wikipedia.org/w/index.php?title=Uluru&oldid=297882194">' +
  'https://en.wikipedia.org/w/index.php?title=Uluru</a> ' +
  '(last visited June 22, 2009).</p>' +
  '</div>' +
  '</div>';

function addMarkerWithTimeout(position, html, timeout) {
  window.setTimeout(function() {
    var data = position;
    var marker = new google.maps.Marker({
      position: position,
      map: map,
      title: data.name,
      animation: google.maps.Animation.DROP
    });
   ...