diff --git a/chrome/content/vimperator/default.css b/chrome/content/vimperator/default.css
index 6e8f6e6c..3ec465c7 100644
--- a/chrome/content/vimperator/default.css
+++ b/chrome/content/vimperator/default.css
@@ -167,8 +167,7 @@ fieldset.paypal {
 
 #vimperator-visualbell {
     border: none;
-    background-color: blue;
-    opacity: 0.5;
+    background-color: black;
 }
 
 .status_insecure, .status_insecure * {
diff --git a/chrome/content/vimperator/vimperator.js b/chrome/content/vimperator/vimperator.js
index 1cb2477e..7fe4b3b7 100644
--- a/chrome/content/vimperator/vimperator.js
+++ b/chrome/content/vimperator/vimperator.js
@@ -295,7 +295,7 @@ const vimperator = (function() //{{{
             popup.width = box.width;
             popup.showPopup(win, box.screenX, box.screenY, "popup");
 
-            setTimeout(function() { popup.hidePopup(); }, 375);
+            setTimeout(function() { popup.hidePopup(); }, 50);
         },
 
         copyToClipboard: function(str)