diff --git a/img/visualize/cloudy/back.png b/img/visualize/cloudy/back.png
new file mode 100644
index 0000000..7a2c872
Binary files /dev/null and b/img/visualize/cloudy/back.png differ
diff --git a/img/visualize/cloudy/down.png b/img/visualize/cloudy/down.png
new file mode 100644
index 0000000..3eeac68
Binary files /dev/null and b/img/visualize/cloudy/down.png differ
diff --git a/img/visualize/cloudy/front.png b/img/visualize/cloudy/front.png
new file mode 100644
index 0000000..64aa4f7
Binary files /dev/null and b/img/visualize/cloudy/front.png differ
diff --git a/img/visualize/cloudy/left.png b/img/visualize/cloudy/left.png
new file mode 100644
index 0000000..c4a0a3d
Binary files /dev/null and b/img/visualize/cloudy/left.png differ
diff --git a/img/visualize/cloudy/right.png b/img/visualize/cloudy/right.png
new file mode 100644
index 0000000..ce16e66
Binary files /dev/null and b/img/visualize/cloudy/right.png differ
diff --git a/img/visualize/cloudy/up.png b/img/visualize/cloudy/up.png
new file mode 100644
index 0000000..a8e2f14
Binary files /dev/null and b/img/visualize/cloudy/up.png differ
diff --git a/js/component/card/three_d.js b/js/component/card/three_d.js
index b280e8f..2e208d7 100644
--- a/js/component/card/three_d.js
+++ b/js/component/card/three_d.js
@@ -83,6 +83,7 @@ beestat.component.card.three_d.prototype.decorate_ = function(parent) {
  */
 beestat.component.card.three_d.prototype.decorate_contents_ = function(parent) {
   const drawing_pane_container = document.createElement('div');
+  drawing_pane_container.style.overflowX = 'hidden';
 
   parent.appendChild(drawing_pane_container);
   this.decorate_drawing_pane_(drawing_pane_container);
@@ -91,7 +92,6 @@ beestat.component.card.three_d.prototype.decorate_contents_ = function(parent) {
   const controls_container = document.createElement('div');
   Object.assign(controls_container.style, {
     'position': 'absolute',
-    // 'margin': 'auto',
     'top': `${beestat.style.size.gutter}px`,
     'left': '50%',
     'width': '300px',
diff --git a/js/component/scene.js b/js/component/scene.js
index 5215c6b..89f45fb 100644
--- a/js/component/scene.js
+++ b/js/component/scene.js
@@ -92,6 +92,7 @@ beestat.component.scene.prototype.decorate_ = function(parent) {
   this.add_renderer_(parent);
   this.add_camera_();
   this.add_controls_(parent);
+  this.add_skybox_(parent);
   // this.add_sky_();
   // this.add_moon_();
   // this.add_directional_light_moon_();
@@ -226,6 +227,36 @@ beestat.component.scene.prototype.add_controls_ = function(parent) {
   this.controls_.maxPolarAngle = Math.PI / 2.5;
 };
 
+/**
+ * Add a skybox background. Generated using Spacescape with the Unity export
+ * settings. After export: bottom is rotated CW 90°; top is roted 90°CCW.
+ *
+ * nx -> bk
+ * ny -> dn
+ * nz -> lf
+ * px -> ft
+ * py -> up
+ * pz -> rt
+ *
+ * @link https://www.mapcore.org/topic/24535-online-tools-to-convert-cubemaps-to-panoramas-and-vice-versa/
+ * @link https://jaxry.github.io/panorama-to-cubemap/
+ * @link http://alexcpeterson.com/spacescape/
+ */
+beestat.component.scene.prototype.add_skybox_ = function() {
+  const skybox_name = 'cloudy';
+  const loader = new THREE.CubeTextureLoader();
+  loader.setPath('img/visualize/' + skybox_name + '/');
+  const texture = loader.load([
+    'front.png',
+    'back.png',
+    'up.png',
+    'down.png',
+    'right.png',
+    'left.png'
+  ]);
+  this.scene_.background = texture;
+};
+
 /**
  * Add the sky to the scene. This is a shader that draws on the inside of a
  * box really far away. The size of the sun can be tweaked with the