JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://openlayers.org/api/OpenLayers.js"></script>
<div id="map-div" style="width:450px;height:430px;"></div>

JavaScript

var map = new OpenLayers.Map("map-div");
var imagery = new OpenLayers.Layer.WMS("Global Imagery", "http://maps.opengeo.org/geowebcache/service/wms", {
    layers: "bluemarble"
});
map.addLayer(imagery);
map.setCenter(new OpenLayers.LonLat(0,0),1);