update

Author: TimSamshuijzen

README.md

@@ -4,12 +4,13 @@ HTML3D is a JavaScript library for creating 3D scenes with HTML and CSS 3D trans
 See the demo:<br />
 https://html3d.com
 
-The demo works in Chromium-based browsers and Safari. The demo does not work in Firefox.
+The demo showcases a fully recursive game-within-a-game.<br>
+The demo works in Chromium-based browsers and Safari. Unfortunately, the demo is too large for Firefox to handle.
 
 ![HTML3D demo](./images/html3d_demo.png?raw=true "HTML3D demo")
 
 **src/index.html**<br />
-This html file is the homepage of html3d.com. It is a demo of HTML3D's capabilities, showcasing a recursive game-within-a-game.
+This html file is the homepage of html3d.com. It is a demo of HTML3D's capabilities.
 All the code is in the html file. You can use this file as a starting point for creating your own 3D scenes.
 
 **src/HTML3D.js**<br>

src/HTML3D.js

@@ -551,13 +551,7 @@ class HTML3D {
       return this;
     }
     toCSSMatrixString() {
-      const e = this.elements;
-      return 'matrix3d(' +
-        e[0] + ',' + e[1] + ',' + e[2] + ',' + e[3] + ',' +
-        e[4] + ',' + e[5] + ',' + e[6] + ',' + e[7] + ',' +
-        e[8] + ',' + e[9] + ',' + e[10] + ',' + e[11] + ',' +
-        e[12] + ',' + e[13] + ',' + e[14] + ',' + e[15] +
-        ')';
+      return `matrix3d(${this.elements.join(',')})`;
     }
   }
   HTML3D.BoundingBox = class BoundingBox {

src/index.html

@@ -594,13 +594,7 @@
       return this;
     }
     toCSSMatrixString() {
-      const e = this.elements;
-      return 'matrix3d(' +
-        e[0] + ',' + e[1] + ',' + e[2] + ',' + e[3] + ',' +
-        e[4] + ',' + e[5] + ',' + e[6] + ',' + e[7] + ',' +
-        e[8] + ',' + e[9] + ',' + e[10] + ',' + e[11] + ',' +
-        e[12] + ',' + e[13] + ',' + e[14] + ',' + e[15] +
-        ')';
+      return `matrix3d(${this.elements.join(',')})`;
     }
   }
   HTML3D.BoundingBox = class BoundingBox {
@@ -870,7 +864,7 @@
         </div>
         <div style="position: absolute; left: 100px; top: 180px; width: 1400px; height: 100px; color: #ffffff; font-size: 32px;">
           HTML3D is a JavaScript library for creating 3D scenes with HTML and CSS 3D transforms.<br />
-          This demo is a showcase of HTML3D's capabilities.
+          This demo showcases a building with a recursive game-within-a-game.
         </div>
         <div style="position: absolute; left: 100px; top: 300px; width: 1100px; height: 120px; color: #ffffff; font-size: 100px;">
           move