Uses an overlay to create a popup.

Click on the map to get a popup. The popup is composed of a few basic elements: a container, a close button, and a place for the content. To anchor the popup to the map, an ol/Overlay is created with the popup container. A listener is registered for the map's click event to display the popup, and another listener is set as the click handler for the close button to hide the popup.

<!DOCTYPE html>
    <link rel="stylesheet" href="https://openlayers.org/en/v5.3.0/css/ol.css" type="text/css">
    <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>

      .ol-popup {
        position: absolute;
        background-color: white;
        -webkit-filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
        filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
        padding: 15px;
        border-radius: 10px;
        border: 1px solid #cccccc;
        bottom: 12px;
        left: -50px;
        min-width: 280px;
      .ol-popup:after, .ol-popup:before {
        top: 100%;
        border: solid transparent;
        content: " ";
        height: 0;
        width: 0;
        position: absolute;
        pointer-events: none;
      .ol-popup:after {
        border-top-color: white;
        border-width: 10px;
        left: 48px;
        margin-left: -10px;
      .ol-popup:before {
        border-top-color: #cccccc;
        border-width: 11px;
        left: 48px;
        margin-left: -11px;
      .ol-popup-closer {
        text-decoration: none;
        position: absolute;
        top: 2px;
        right: 8px;
      .ol-popup-closer:after {
        content: "✖";
    <div id="map" class="map"></div>
    <div id="popup" class="ol-popup">
      <a href="#" id="popup-closer" class="ol-popup-closer"></a>
      <div id="popup-content"></div>
      import Map from 'ol/Map.js';
      import Overlay from 'ol/Overlay.js';
      import View from 'ol/View.js';
      import {toStringHDMS} from 'ol/coordinate.js';
      import TileLayer from 'ol/layer/Tile.js';
      import {toLonLat} from 'ol/proj.js';
      import TileJSON from 'ol/source/TileJSON.js';

       * Elements that make up the popup.
      var container = document.getElementById('popup');
      var content = document.getElementById('popup-content');
      var closer = document.getElementById('popup-closer');

       * Create an overlay to anchor the popup to the map.
      var overlay = new Overlay({
        element: container,
        autoPan: true,
        autoPanAnimation: {
          duration: 250

       * Add a click handler to hide the popup.
       * @return {boolean} Don't follow the href.
      closer.onclick = function() {
        return false;

       * Create the map.
      var map = new Map({
        layers: [
          new TileLayer({
            source: new TileJSON({
              url: 'https://api.tiles.mapbox.com/v3/mapbox.natural-earth-hypso-bathy.json?secure',
              crossOrigin: 'anonymous'
        overlays: [overlay],
        target: 'map',
        view: new View({
          center: [0, 0],
          zoom: 2

       * Add a click handler to the map to render the popup.
      map.on('singleclick', function(evt) {
        var coordinate = evt.coordinate;
        var hdms = toStringHDMS(toLonLat(coordinate));

        content.innerHTML = '<p>You clicked here:</p><code>' + hdms +