diff --git a/demos/index.html b/demos/index.html
index 684187a1a..68647cf92 100644
--- a/demos/index.html
+++ b/demos/index.html
@@ -87,7 +87,7 @@
 				<?php if(isset($plain) && isset($_GET['load'])) { 
 					echo html_entity_decode('&lt;h3&gt;'. $_GET['load'] .'&lt;/h3&gt;'); 
 					include($section .'/index.html'); 
-					echo html_entity_decode('&lt;iframe id="preview" name="preview" src="/'. $section .'/default.html" width="500" height="300" border="0" frameborder="0" style="overflow:auto"&gt;&lt;/iframe&gt;'); 
+					echo html_entity_decode('&lt;iframe id="preview" name="preview" src="/'. $section .'/default.html" width="520" height="314" border="0" frameborder="0" style="overflow:auto"&gt;&lt;/iframe&gt;'); 
 				} else { ?>
 				
 				<h3>Instructions</h3>