I feel pretty,

Oh, so pretty,
I feel pretty and witty and gay!
And I pity
Any girl who isn't me today.

UI/Content/base.less

@@ -25,6 +25,10 @@
   }
 }
 
+.backdrop .page {
+  background-color: transparent;
+}
+
 html {
   overflow: -moz-scrollbars-vertical;
   overflow-y: scroll;
@@ -61,12 +65,6 @@ html {
   }
 }
 
-#in-sub-nav {
-  ul {
-    margin: 0 0 80px 0;
-  }
-}
-
 #notification-region {
   pre {
     font-size: 12px;

UI/Content/menu.less

@@ -11,3 +11,12 @@
   color: #b9b9b9;
 
 }
+
+#in-sub-nav {
+  margin-bottom: 80px;
+}
+
+.backdrop #in-sub-nav {
+  background-color: #000000;
+  opacity: 0.85;
+}

UI/Content/theme.less

@@ -750,7 +750,7 @@ body h1, body h2, body h3, body h4, body h5, body h6 {
 #in-sub-nav {
   ul {
     text-align: center;
-    margin-bottom: 80px;
+    margin-bottom: 10px;
   }
   li {
     list-style-type: none;