JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
    <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
    <title></title>
    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.0/js/dojo/dijit/themes/tundra/tundra.css" />
    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.0/js/esri/dijit/css/Popup.css" />
    <style>
      html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
      #map{ margin: 0; padding: 0; }
    </style>
    <script>var dojoConfig = { parseOnLoad: true };</script>
    <script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=3.0"></script>
    <script>
      dojo.require("dijit.layout.BorderContainer");
      dojo.require("dijit.layout.ContentPane");
      dojo.require("esri.map");
      
      var map;
      function init() {
        var ext = new esri.geometry.Extent({"xmin":-9347359,"ymin":-2672158,"xmax":-3335128,"ymax":297267,"spatialReference":{"wkid":102100}});
        map = new esri.Map("map",{ extent: ext, wrapAround180: true });
        var basemap = new esri.layers.ArcGISTiledMapServiceLayer("http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer");
        map.addLayer(basemap);
        
        dojo.connect(map, "onLoad", function() { 
          dojo.connect(dijit.byId("map"), "resize", map, map.resize);
          dojo.connect(map, "onClick", addGraphic);
        });
      }

      function addGraphic(e) {
        var sym = new esri.symbol.SimpleMarkerSymbol();
        sym.setColor(randomColor());
        map.graphics.add(new esri.Graphic(e.mapPoint, sym)).getDojoShape().moveToBack();
      }

      function randomColor() {
        // thanks to:  http://paulirish.com/2009/random-hex-color-code-snippets/
        return new dojo.Color("#" + Math.floor(Math.random()*16777215).toString(16));
      }
  ...