[style] [upgrade] moved to bootstrap 3
diff --git a/utilities/page/questions/questions.html b/utilities/page/questions/questions.html
index 3138e9c..bd003ce 100644
--- a/utilities/page/questions/questions.html
+++ b/utilities/page/questions/questions.html
@@ -1,4 +1,4 @@
-<div class="appframe span12">
+<div class="appframe col-span-12">
 	<div class="layout-appframe"></div>
 	<div class="layout-main-section">
 		<div class="kb-search-wrapper">