diff --git a/app/views/boards/show.html.erb b/app/views/boards/show.html.erb
index a86cee5bf..f25e690d0 100644
--- a/app/views/boards/show.html.erb
+++ b/app/views/boards/show.html.erb
@@ -1,11 +1,11 @@
-<style>
-    .ke-toolbar{display:none;width:400px;border:none;background:none;padding:0px 0px;}
-    .ke-toolbar-icon{line-height:26px;font-size:14px;padding-left:26px;}
-    .ke-toolbar-icon-url{background-image:url( '/images/public_icon.png' )}
-    .ke-toolbar .ke-outline{padding:0px 0px;line-height:26px;font-size:14px;}
-    .ke-icon-emoticons{background-position:0px -671px;width:50px;height:26px;}
-    .ke-icon-emoticons:hover{background-position:-79px -671px;width:50px;height:26px;}
-    .ke-toolbar .ke-outline{border:none;}
+<style type="text/css">
+    div.ke-toolbar{display:none;width:400px;border:none;background:none;padding:0px 0px;}
+    span.ke-toolbar-icon{line-height:26px;font-size:14px;padding-left:26px;}
+    span.ke-toolbar-icon-url{background-image:url( /images/public_icon.png )}
+    div.ke-toolbar .ke-outline{padding:0px 0px;line-height:26px;font-size:14px;}
+    span.ke-icon-emoticons{background-position:0px -671px;width:50px;height:26px;}
+    span.ke-icon-emoticons:hover{background-position:-79px -671px;width:50px;height:26px;}
+    div.ke-toolbar .ke-outline{border:none;}
     .break_word {width:100%;}
 </style>
 <script type="text/javascript">