JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.7.0/ol.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.7.0/ol.js"></script>
  <div class="row-fluid">
    <div class="span12">
      <div id="map" class="map"></div>
    </div>
  </div>
<div id="coordinates" class="mapCoords"></div>

JavaScript

var layers = [
  new ol.layer.Tile({
    source: new ol.source.MapQuest({layer: 'sat'})
  }),
  new ol.layer.Tile({
    source: new ol.source.TileWMS({
      url: 'http://demo.boundlessgeo.com/geoserver/ne/wms',
      params: {'LAYERS': 'ne:ne_10m_admin_0_countries', 'TILED': true},
      serverType: 'geoserver'
    })
  })
];
var map = new ol.Map({
  layers: layers,
  target: 'map',
  view: new ol.View({
    center: [0, 0],
    zoom: 1
  })
});

map.addControl(new ol.control.MousePosition({
    className: "mapCoords",
	projection: "EPSG:4326",
					coordinateFormat: function(coordinate) {
						return ol.coordinate.format(coordinate, '{y}\', {x}\'', 4);
					},
					target: 'coordinates',
					undefinedHTML: ""
}));