fix menu overlap

Author: murrant

_includes/head.html

@@ -35,7 +35,7 @@
     <link href="http://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700" rel="stylesheet" type="text/css">
     <link rel="stylesheet" href="/css/prettyPhoto.css">
 
-    <link rel="stylesheet" href="/css/site.css?ver=10272021">
+    <link rel="stylesheet" href="/css/site.css?ver=10262021">
 
     <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->

css/site.css

@@ -34,6 +34,7 @@
     }
 }
 
-.navbar-static-top.navbar {
+.navbar.navbar-static-top {
     margin-bottom: 0;
+    z-index: auto;
 }