diff --git a/airtime_mvc/application/layouts/scripts/builder.phtml b/airtime_mvc/application/layouts/scripts/builder.phtml
index e9313cd03..3efba392c 100644
--- a/airtime_mvc/application/layouts/scripts/builder.phtml
+++ b/airtime_mvc/application/layouts/scripts/builder.phtml
@@ -22,7 +22,7 @@
 <div class="wrapper">
     <!--Set to z-index 254 to make it lower than the top-panel and the ZFDebug info bar, but higher than the side-playlist-->
 	<div id="library_content" class="tabs ui-widget ui-widget-content block-shadow alpha-block padded" style="z-index:254"><?php echo $this->layout()->library ?></div>
-	<div id="show_builder" style="width:500px;" class="ui-widget ui-widget-content block-shadow omega-block padded"><?php echo $this->layout()->builder ?></div>
+	<div id="show_builder" class="ui-widget ui-widget-content block-shadow omega-block padded"><?php echo $this->layout()->builder ?></div>
 </div>
 </body>
 </html>
diff --git a/airtime_mvc/public/css/showbuilder.css b/airtime_mvc/public/css/showbuilder.css
index 95ec1aad8..9854c67b4 100644
--- a/airtime_mvc/public/css/showbuilder.css
+++ b/airtime_mvc/public/css/showbuilder.css
@@ -1,5 +1,9 @@
 @CHARSET "UTF-8";
 
+#show_builder {
+    width:45%;
+}
+
 #show_builder input.input_text {
     width:100px;
 }