diff --git a/templates/bulletproof/preview_iframe.tpl b/templates/bulletproof/preview_iframe.tpl
index c3fc47c6..ba1c80b0 100644
--- a/templates/bulletproof/preview_iframe.tpl
+++ b/templates/bulletproof/preview_iframe.tpl
@@ -12,7 +12,9 @@
         <![endif]-->
         <!-- additional colorset stylesheet -->
         <link rel="stylesheet" type="text/css" href="{$serendipityHTTPPath}templates/{$template}/{$template_option.colorset}_style.css" />
-
+        <!-- additional user stylesheet: this can be used to override selected styles -->
+        {if $template_option.userstylesheet == 'true'}<link rel="stylesheet" type="text/css" href="{serendipity_getFile file="user.css"}" media="screen" />{/if}
+        
         <script type="text/javascript">
            window.onload = function() {ldelim}
              parent.document.getElementById('serendipity_iframe').style.height = document.getElementById('content').offsetHeight