Update hellox3dom.html

public/X3DOMTutorial/hellox3dom.html

@@ -81,15 +81,15 @@
         nodes that define that geometry's appearance. The following example draws a blue box.        
 <pre>
   <code class="language-html">
-  &lt;X3D id="shapedata" width="600px" height="600px" style="float:left"&gt;
-    &lt;Scene&gt; 
-      &lt;background transparency='0' skyColor='1 0 0'&gt; &lt;/background&gt;
-        &lt;Shape id=box&gt; 
-          &lt;appearance &gt; 
-            &lt;material diffuseColor='0 0 1'&gt;&lt;/material&gt; 
-          &lt;/appearance&gt; 
-          &lt;Box&gt; &lt;/Box&gt;
-        &lt;/Shape&gt;
+    &lt;X3D id="shapedata" width="600px" height="600px" style="float:left"&gt;
+      &lt;Scene&gt; 
+        &lt;background transparency='0' skyColor='1 0 0'&gt; &lt;/background&gt;
+          &lt;Shape id=box&gt; 
+            &lt;appearance &gt; 
+              &lt;material diffuseColor='0 0 1'&gt;&lt;/material&gt; 
+            &lt;/appearance&gt; 
+            &lt;Box&gt; &lt;/Box&gt;
+          &lt;/Shape&gt;
       &lt;/Scene&gt;
     &lt;/X3D&gt;
   </code>