diff --git a/utilities/page/markdown_reference/markdown_reference.html b/utilities/page/markdown_reference/markdown_reference.html
index b9e4c6e..5ec813b 100644
--- a/utilities/page/markdown_reference/markdown_reference.html
+++ b/utilities/page/markdown_reference/markdown_reference.html
@@ -1,4 +1,4 @@
-<div class="appframe span12">
+<div class="appframe col-span-12">
 	<div class="layout-appframe">
 		<div class="appframe-titlebar">
 			<span class="appframe-title">Markdown Reference</span>
diff --git a/utilities/page/question_view/question_view.html b/utilities/page/question_view/question_view.html
index f5f8eb4..13f96a3 100644
--- a/utilities/page/question_view/question_view.html
+++ b/utilities/page/question_view/question_view.html
@@ -1,4 +1,4 @@
-<div class="appframe span12">
+<div class="appframe col-span-12">
 	<div class="layout-appframe"></div>
 	<div class="layout-main" style="min-height: 400px">
 		<div class="qv-question-wrapper">
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">