diff --git a/website/o3dv/css/panelset.css b/website/o3dv/css/panelset.css
index 216a312..20ed184 100644
--- a/website/o3dv/css/panelset.css
+++ b/website/o3dv/css/panelset.css
@@ -10,7 +10,7 @@ div.ov_panel_set_right_container div.ov_panel_set_menu
 
 div.ov_panel_set_menu div.ov_panel_set_menu_button
 {
-	padding: 6px;
+	padding: 10px;
     cursor: pointer;
 }
 
diff --git a/website/o3dv/js/navigator.js b/website/o3dv/js/navigator.js
index 0238895..134c248 100644
--- a/website/o3dv/js/navigator.js
+++ b/website/o3dv/js/navigator.js
@@ -58,6 +58,9 @@ OV.Navigator = class
         this.callbacks = callbacks;
 
         this.panelSet.Init ({
+            onShowHidePanels : (show) => {
+
+            },
             onResize : () => {
                 if (this.panelSet.IsPanelsVisible ()) {
                     this.splitterDiv.show ();
diff --git a/website/o3dv/js/panelset.js b/website/o3dv/js/panelset.js
index 88deb3d..46605ab 100644
--- a/website/o3dv/js/panelset.js
+++ b/website/o3dv/js/panelset.js
@@ -101,13 +101,14 @@ OV.PanelSet = class
         if (this.panelsVisible) {
             this.contentDiv.show ();
             this.parentDiv.outerWidth (this.menuDiv.outerWidth (true) + this.panelsPrevWidth, true);
-            this.callbacks.onResize ();
         } else {
             this.panelsPrevWidth = this.contentDiv.outerWidth (true);
-            this.contentDiv.hide ();
             this.parentDiv.outerWidth (this.menuDiv.outerWidth (true), true);
-            this.callbacks.onResize ();
+            this.contentDiv.hide ();
         }
+
+        this.callbacks.onShowHidePanels (this.panelsVisible);
+        this.callbacks.onResize ();
     }
 
     ShowPanel (panel)
diff --git a/website/o3dv/js/sidebar.js b/website/o3dv/js/sidebar.js
index 35778ee..795ae9b 100644
--- a/website/o3dv/js/sidebar.js
+++ b/website/o3dv/js/sidebar.js
@@ -13,11 +13,24 @@ OV.Sidebar = class
         this.panelSet.ShowPanel (this.detailsPanel);
     }
 
+    IsPanelsVisible ()
+    {
+        return this.panelSet.IsPanelsVisible ();
+    }
+
+    ShowPanels (show)
+    {
+        this.panelSet.ShowPanels (show);
+    }
+
     Init (settings, callbacks)
     {
         this.callbacks = callbacks;
 
         this.panelSet.Init ({
+            onShowHidePanels : (show) => {
+                this.callbacks.onShowHidePanels (show);
+            },
             onResize : () => {
                 if (this.panelSet.IsPanelsVisible ()) {
                     //this.splitterDiv.show ();
diff --git a/website/o3dv/js/website.js b/website/o3dv/js/website.js
index 168bb7c..00aed13 100644
--- a/website/o3dv/js/website.js
+++ b/website/o3dv/js/website.js
@@ -58,15 +58,13 @@ OV.Website = class
 
         let navigatorWidth = 0;
         let sidebarWidth = 0;
-        let safetyMargin = 0;
         if (!OV.IsSmallWidth ()) {
             navigatorWidth = this.navigator.GetWidth ();
             sidebarWidth = this.sidebar.GetWidth ();
-            safetyMargin = 1;
         }
 
-        let contentWidth = windowWidth - navigatorWidth - sidebarWidth - safetyMargin;
-        let contentHeight = windowHeight - headerHeight - safetyMargin;
+        let contentWidth = windowWidth - navigatorWidth - sidebarWidth;
+        let contentHeight = windowHeight - headerHeight;
 
         this.parameters.sidebarDiv.outerHeight (contentHeight, true);
         this.parameters.introDiv.outerHeight (contentHeight, true);
@@ -510,9 +508,6 @@ OV.Website = class
     {
         this.sidebar.Init (this.settings,
             {
-                onResize : () => {
-                    this.Resize ();
-                },
                 onBackgroundColorChange : (newVal) => {
                     this.settings.backgroundColor = newVal;
                     this.settings.SaveToCookies (this.cookieHandler);
@@ -529,6 +524,12 @@ OV.Website = class
                 },
                 onThemeChange : (newVal) => {
                     this.SwitchTheme (newVal, true);
+                },
+                onResize : () => {
+                    this.Resize ();
+                },
+                onShowHidePanels : (show) => {
+
                 }
             }
         );