css only solution for version dropdown

Author: brenfrow

source/javascripts/docs.js

@@ -26,4 +26,15 @@
     position: absolute;
     top: -18px;
   }
+
+  // On hover
+  &:hover {
+    ul {
+      display: block;
+    }
+
+    > a {
+      display: none;
+    }
+  }
 }