diff --git a/core/modules/toolbar/css/toolbar.module.css b/core/modules/toolbar/css/toolbar.module.css
index b6b7c4a..ba67b89 100644
--- a/core/modules/toolbar/css/toolbar.module.css
+++ b/core/modules/toolbar/css/toolbar.module.css
@@ -14,6 +14,7 @@
   line-height: 1;
   margin: 0;
   padding: 0;
+  position: static;
   vertical-align: baseline;
 }
 @media print {
diff --git a/core/modules/toolbar/js/models/ToolbarModel.js b/core/modules/toolbar/js/models/ToolbarModel.js
index 38d9dab..0b6ec48 100644
--- a/core/modules/toolbar/js/models/ToolbarModel.js
+++ b/core/modules/toolbar/js/models/ToolbarModel.js
@@ -22,9 +22,7 @@
      * @prop activeTab
      * @prop activeTray
      * @prop isOriented
-     * @prop isFixed
      * @prop areSubtreesLoaded
-     * @prop isViewportOverflowConstrained
      * @prop orientation
      * @prop locked
      * @prop isTrayToggleVisible
@@ -67,15 +65,6 @@
       areSubtreesLoaded: false,
 
       /**
-       * If the viewport overflow becomes constrained, isFixed must be true so
-       * that elements in the trays aren't lost off-screen and impossible to
-       * get to.
-       *
-       * @type {bool}
-       */
-      isViewportOverflowConstrained: false,
-
-      /**
        * The orientation of the active tray.
        *
        * @type {string}
diff --git a/core/modules/toolbar/js/views/BodyVisualView.js b/core/modules/toolbar/js/views/BodyVisualView.js
index 9eb5210..a0466ea 100644
--- a/core/modules/toolbar/js/views/BodyVisualView.js
+++ b/core/modules/toolbar/js/views/BodyVisualView.js
@@ -17,7 +17,7 @@
      * @augments Backbone.View
      */
     initialize: function () {
-      this.listenTo(this.model, 'change:orientation change:offsets change:activeTray change:isOriented change:isFixed change:isViewportOverflowConstrained', this.render);
+      this.listenTo(this.model, 'change:orientation change:offsets change:activeTray change:isOriented change:isFixed', this.render);
     },
 
     /**
@@ -27,7 +27,6 @@
       var $body = $('body');
       var orientation = this.model.get('orientation');
       var isOriented = this.model.get('isOriented');
-      var isViewportOverflowConstrained = this.model.get('isViewportOverflowConstrained');
 
       $body
         // We are using JavaScript to control media-query handling for two