JSFiddle - React, Tailwind, and code Playground

HTML

<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>
<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">
<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: 'Привет Мир',
});

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

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

var map = new ol.Map({
  layers: [osm, vectorLayer],
  target: document.getElementById('map'),
  view: new ol.View({
		//projection: 'EPSG:4326',
		center: [0,0],
    zoom: 4
  })
});

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,
      'content': '<div>'+feature.get('name')+'</div><img src="http://www.nsktv.ru/upload/iblock/7d9/7d9044a7603b61d0746cafdf2b48993e.png" width="200px">'
    });
    $(element).popover('show');
  } else {
    $(element).popover('destroy');
  }
});

// change mouse cursor when over marker
map.on('pointermove', function(e) {
  if (e.dragging) {
    $(element).popover('destroy');
    return;
  }
  var pixel = map.getEventPixel(e.originalEvent);
  var hit = map.hasFeatureAtPixel(pixel);
  map.getTarget().style.cursor = hit ? 'pointer' : '';
});