JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.7.0/ol.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://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<div class="row-fluid">
  <div class="span12">
    <div id="map" class="map">
      <div id="popup"></div>
    </div>
  </div>
</div>

CSS

#map {
  position: relative;
}

#popup {
  padding-bottom: 45px;
}

JavaScript

var iconFeature = new ol.Feature({
  geometry: new ol.geom.Point([0, 0]),
  name: 'Null Island',
  population: 4000,
  rainfall: 500
});

var iconFeature2 = new ol.Feature({
  geometry: new ol.geom.Point([415609.79343279434, 3991.9735954556963]),
  name: 'Null Null Island',
  population: 200,
  rainfall: 100
});

var iconStyle = new ol.style.Style({
  image: new ol.style.Icon( /** @type {olx.style.IconOptions} */ ({
    anchor: [0.5, 46],
    anchorXUnits: 'fraction',
    anchorYUnits: 'pixels',
    opacity: 0.75,
    src: 'http://openlayers.org/en/v3.7.0/examples/data/icon.png'
  }))
});

var iconStyle = new ol.style.Style({
  image: new ol.style.Icon( /** @type {olx.style.IconOptions} */ ({
    anchor: [0.5, 46],
    anchorXUnits: 'fraction',
    anchorYUnits: 'pixels',
    opacity: 0.75,
    src: 'http://openlayers.org/en/v3.7.0/examples/data/icon.png'
  }))
});
iconFeature.setStyle(iconStyle);
iconFeature2.setStyle(iconStyle);

var vectorSource = new ol.source.Vector({
  features: [iconFeature, iconFeature2]
});

var vectorLayer = new ol.layer.Vector({
  source: vectorSource
});

var rasterLayer = new ol.layer.Tile({
  source: new ol.source.TileJSON({
    url: 'http://api.tiles.mapbox.com/v3/mapbox.geography-class.jsonp',
    crossOrigin: ''
  })
});

var map = new ol.Map({
  layers: [rasterLayer, vectorLayer],
  target: document.getElementById('map'),
  view: new ol.View({
    center: [0, 0],
    zoom: 3
  })
});

var element = document.getElementById('popup');

var popup = new ol.Overlay({
  element: element,
  positioning: 'bottom-center',
  stopEvent: false
});
map.addOverlay(popup);

// display popup on click
map.on('click', function(evt) {
  var feature = map.forEachFeatureAtPixel(evt.pixel,
    function(feature, layer) {
      return feature;
    });
  if (feature) {
    var geometry = feature.getGeometry();
    var coord = geometry.getCoordinates();
    popup.setPosition(coord);
    $(element).popover({
      'placement': 'top',
      'html': true,
  ...