diff --git a/public/assets/css/bootstrap.css b/public/assets/css/bootstrap.css
index bb401fe..da19f4d 100644
--- a/public/assets/css/bootstrap.css
+++ b/public/assets/css/bootstrap.css
@@ -1,5 +1,5 @@
 /*!
- * Bootstrap v2.3.1
+ * Bootstrap v2.3.2
  *
  * Copyright 2012 Twitter, Inc
  * Licensed under the Apache License v2.0
@@ -3009,6 +3009,15 @@ table th[class*="span"],
   display: block;
 }
 
+.dropdown-backdrop {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 990;
+}
+
 .pull-right > .dropdown-menu {
   right: 0;
   left: auto;