diff --git a/src/chapter-01/04-materials-light-animation.html b/src/chapter-01/04-materials-light-animation.html
index d0e0d0df..5903f1aa 100644
--- a/src/chapter-01/04-materials-light-animation.html
+++ b/src/chapter-01/04-materials-light-animation.html
@@ -1,8 +1,6 @@
-
-
Example 01.04 - Materials, light and animation
@@ -15,6 +13,8 @@
+
+
diff --git a/src/chapter-01/05-control-gui.html b/src/chapter-01/05-control-gui.html
index 5c57a4ac..7a724fbc 100644
--- a/src/chapter-01/05-control-gui.html
+++ b/src/chapter-01/05-control-gui.html
@@ -1,7 +1,6 @@
-
Example 01.05 - Control gui
@@ -16,6 +15,7 @@
+
diff --git a/src/chapter-05/js/05-11.js b/src/chapter-05/js/05-11.js
index 76192f45..3fbc79f5 100644
--- a/src/chapter-05/js/05-11.js
+++ b/src/chapter-05/js/05-11.js
@@ -19,7 +19,6 @@ function init() {
// the start geometry and material. Used as the base for the settings in the control UI
this.appliedMaterial = applyMeshNormalMaterial
this.castShadow = true;
- this.groundPlaneVisible = true;
this.radius = 10;
this.detail = 0;
@@ -74,7 +73,6 @@ function init() {
}).onChange(controls.redraw)
gui.add(controls, 'castShadow').onChange(function(e) {controls.mesh.castShadow = e})
- gui.add(controls, 'groundPlaneVisible').onChange(function(e) {groundPlane.material.visible = e})
// initialize the first redraw so everything gets initialized
controls.redraw();
diff --git a/src/chapter-09/01-basic-animation.html b/src/chapter-09/01-basic-animation.html
index 6421d62b..1964dc18 100644
--- a/src/chapter-09/01-basic-animation.html
+++ b/src/chapter-09/01-basic-animation.html
@@ -1,7 +1,6 @@
-
Example 09.01 - Simple animation
@@ -16,6 +15,8 @@
+
+
diff --git a/src/chapter-09/02-selecting-objects.html b/src/chapter-09/02-selecting-objects.html
index 02214913..0ef10f83 100644
--- a/src/chapter-09/02-selecting-objects.html
+++ b/src/chapter-09/02-selecting-objects.html
@@ -1,7 +1,6 @@
-
Example 09.02 - Selecting objects
@@ -16,6 +15,8 @@
+
+