diff --git a/externs/olx.js b/externs/olx.js
index 71328756d5..0d7370bdb1 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -204,8 +204,8 @@ olx.control;
  *     collapsible: (boolean|undefined),
  *     collapsed: (boolean|undefined),
  *     tipLabel: (string|undefined),
- *     label: (string|Node|undefined),
- *     collapseLabel: (string|Node|undefined),
+ *     label: (string|Element|undefined),
+ *     collapseLabel: (string|Element|undefined),
  *     render: (function(ol.MapEvent)|undefined),
  *     target: (Element|string|undefined)}}
  */
@@ -258,8 +258,8 @@ olx.control.AttributionOptions.prototype.tipLabel;
 
 /**
  * Text label to use for the collapsed attributions button. Default is `i`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.AttributionOptions.prototype.label;
@@ -267,8 +267,8 @@ olx.control.AttributionOptions.prototype.label;
 
 /**
  * Text label to use for the expanded attributions button. Default is `»`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.AttributionOptions.prototype.collapseLabel;
@@ -320,8 +320,8 @@ olx.control.ControlOptions.prototype.target;
 
 /**
  * @typedef {{className: (string|undefined),
- *     label: (string|Node|undefined),
- *     labelActive: (string|Node|undefined),
+ *     label: (string|Element|undefined),
+ *     labelActive: (string|Element|undefined),
  *     tipLabel: (string|undefined),
  *     keys: (boolean|undefined),
  *     target: (Element|string|undefined),
@@ -340,8 +340,8 @@ olx.control.FullScreenOptions.prototype.className;
 
 /**
  * Text label to use for the button. Default is `\u2922` (NORTH EAST AND SOUTH WEST ARROW).
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.FullScreenOptions.prototype.label;
@@ -350,8 +350,8 @@ olx.control.FullScreenOptions.prototype.label;
 /**
  * Text label to use for the button when full-screen is active.
  * Default is `\u00d7` (a cross).
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.FullScreenOptions.prototype.labelActive;
@@ -451,9 +451,9 @@ olx.control.MousePositionOptions.prototype.undefinedHTML;
 
 /**
  * @typedef {{collapsed: (boolean|undefined),
- *     collapseLabel: (string|Node|undefined),
+ *     collapseLabel: (string|Element|undefined),
  *     collapsible: (boolean|undefined),
- *     label: (string|Node|undefined),
+ *     label: (string|Element|undefined),
  *     layers: (Array.<ol.layer.Layer>|ol.Collection.<ol.layer.Layer>|undefined),
  *     render: (function(ol.MapEvent)|undefined),
  *     target: (Element|string|undefined),
@@ -474,8 +474,8 @@ olx.control.OverviewMapOptions.prototype.collapsed;
 
 /**
  * Text label to use for the expanded overviewmap button. Default is `«`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.OverviewMapOptions.prototype.collapseLabel;
@@ -491,8 +491,8 @@ olx.control.OverviewMapOptions.prototype.collapsible;
 
 /**
  * Text label to use for the collapsed overviewmap button. Default is `»`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.OverviewMapOptions.prototype.label;
@@ -617,7 +617,7 @@ olx.control.RotateOptions.prototype.className;
 
 /**
  * Text label to use for the rotate button. Default is `⇧`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
+ * Instead of text, also an element (e.g. a `span` element) can be used.
  * @type {string|Element|undefined}
  * @api
  */
@@ -678,8 +678,8 @@ olx.control.RotateOptions.prototype.target;
 /**
  * @typedef {{duration: (number|undefined),
  *     className: (string|undefined),
- *     zoomInLabel: (string|Node|undefined),
- *     zoomOutLabel: (string|Node|undefined),
+ *     zoomInLabel: (string|Element|undefined),
+ *     zoomOutLabel: (string|Element|undefined),
  *     zoomInTipLabel: (string|undefined),
  *     zoomOutTipLabel: (string|undefined),
  *     delta: (number|undefined),
@@ -706,8 +706,8 @@ olx.control.ZoomOptions.prototype.className;
 
 /**
  * Text label to use for the zoom-in button. Default is `+`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.ZoomOptions.prototype.zoomInLabel;
@@ -715,8 +715,8 @@ olx.control.ZoomOptions.prototype.zoomInLabel;
 
 /**
  * Text label to use for the zoom-out button. Default is `-`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.ZoomOptions.prototype.zoomOutLabel;
@@ -809,7 +809,7 @@ olx.control.ZoomSliderOptions.prototype.render;
 /**
  * @typedef {{className: (string|undefined),
  *     target: (Element|string|undefined),
- *     label: (string|Node|undefined),
+ *     label: (string|Element|undefined),
  *     tipLabel: (string|undefined),
  *     extent: (ol.Extent|undefined)}}
  */
@@ -835,8 +835,8 @@ olx.control.ZoomToExtentOptions.prototype.target;
 
 /**
  * Text label to use for the button. Default is `E`.
- * Instead of text, also a Node (e.g. a `span` element) can be used.
- * @type {string|Node|undefined}
+ * Instead of text, also an element (e.g. a `span` element) can be used.
+ * @type {string|Element|undefined}
  * @api
  */
 olx.control.ZoomToExtentOptions.prototype.label;
diff --git a/src/ol/PluggableMap.js b/src/ol/PluggableMap.js
index 3617503080..41d518ca16 100644
--- a/src/ol/PluggableMap.js
+++ b/src/ol/PluggableMap.js
@@ -44,7 +44,7 @@ import {create as createTransform, apply as applyTransform} from './transform.js
  * @property {module:ol/coordinate~Coordinate} focus
  * @property {number} index
  * @property {Object.<number, module:ol/layer/Layer~State>} layerStates
- * @property {Array.<module:ol/layer/Layer~State} layerStatesArray
+ * @property {Array.<module:ol/layer/Layer~State>} layerStatesArray
  * @property {module:ol/transform~Transform} pixelToCoordinateTransform
  * @property {Array.<module:ol/PluggableMap~PostRenderFunction>} postRenderFunctions
  * @property {module:ol/size~Size} size
diff --git a/src/ol/control/Attribution.js b/src/ol/control/Attribution.js
index 6d7347badc..6224c417fe 100644
--- a/src/ol/control/Attribution.js
+++ b/src/ol/control/Attribution.js
@@ -58,7 +58,7 @@ const Attribution = function(opt_options) {
   if (typeof collapseLabel === 'string') {
     /**
      * @private
-     * @type {Node}
+     * @type {Element}
      */
     this.collapseLabel_ = document.createElement('span');
     this.collapseLabel_.textContent = collapseLabel;
@@ -71,7 +71,7 @@ const Attribution = function(opt_options) {
   if (typeof label === 'string') {
     /**
      * @private
-     * @type {Node}
+     * @type {Element}
      */
     this.label_ = document.createElement('span');
     this.label_.textContent = label;
diff --git a/src/ol/control/FullScreen.js b/src/ol/control/FullScreen.js
index 18e40839f7..e05459233e 100644
--- a/src/ol/control/FullScreen.js
+++ b/src/ol/control/FullScreen.js
@@ -64,7 +64,7 @@ const FullScreen = function(opt_options) {
 
   /**
    * @private
-   * @type {Node}
+   * @type {Element}
    */
   this.labelNode_ = typeof label === 'string' ?
     document.createTextNode(label) : label;
@@ -73,7 +73,7 @@ const FullScreen = function(opt_options) {
 
   /**
    * @private
-   * @type {Node}
+   * @type {Element}
    */
   this.labelActiveNode_ = typeof labelActive === 'string' ?
     document.createTextNode(labelActive) : labelActive;
@@ -217,7 +217,7 @@ function isFullScreen() {
 
 /**
  * Request to fullscreen an element.
- * @param {Node} element Element to request fullscreen
+ * @param {Element} element Element to request fullscreen
  */
 function requestFullScreen(element) {
   if (element.requestFullscreen) {
@@ -233,7 +233,7 @@ function requestFullScreen(element) {
 
 /**
  * Request to fullscreen an element with keyboard input.
- * @param {Node} element Element to request fullscreen
+ * @param {Element} element Element to request fullscreen
  */
 function requestFullScreenWithKeys(element) {
   if (element.mozRequestFullScreenWithKeys) {
diff --git a/src/ol/control/OverviewMap.js b/src/ol/control/OverviewMap.js
index 80f870fc0e..274523bae1 100644
--- a/src/ol/control/OverviewMap.js
+++ b/src/ol/control/OverviewMap.js
@@ -74,7 +74,7 @@ const OverviewMap = function(opt_options) {
   if (typeof collapseLabel === 'string') {
     /**
      * @private
-     * @type {Node}
+     * @type {Element}
      */
     this.collapseLabel_ = document.createElement('span');
     this.collapseLabel_.textContent = collapseLabel;
@@ -88,7 +88,7 @@ const OverviewMap = function(opt_options) {
   if (typeof label === 'string') {
     /**
      * @private
-     * @type {Node}
+     * @type {Element}
      */
     this.label_ = document.createElement('span');
     this.label_.textContent = label;
diff --git a/src/ol/index.js b/src/ol/index.js
index 2b4531cf42..0e289d3923 100644
--- a/src/ol/index.js
+++ b/src/ol/index.js
@@ -26,7 +26,6 @@ export const DEBUG_WEBGL = true;
  * TODO: move to a separate ol-webgl package
  * The maximum supported WebGL texture size in pixels. If WebGL is not
  * supported, the value is set to `undefined`.
- * @const
  * @type {number|undefined}
  */
 let WEBGL_MAX_TEXTURE_SIZE; // value is set below
@@ -35,7 +34,6 @@ let WEBGL_MAX_TEXTURE_SIZE; // value is set below
 /**
  * TODO: move to a separate ol-webgl package
  * List of supported WebGL extensions.
- * @const
  * @type {Array.<string>}
  */
 let WEBGL_EXTENSIONS; // value is set below