Tweak nav style slightly

docs/api-guide/renderers.md

@@ -339,11 +339,11 @@ Templates will render with a `RequestContext` which includes the `status_code` a
 
 The following third party packages are also available.
 
-### MessagePack
+## MessagePack
 
 [MessagePack][messagepack] is a fast, efficient binary serialization format.  [Juan Riaza][juanriaza] maintains the [djangorestframework-msgpack][djangorestframework-msgpack] package which provides MessagePack renderer and parser support for REST framework.
 
-### CSV
+## CSV
 
 Comma-separated values are a plain-text tabular data format, that can be easily imported into spreadsheet applications.  [Mjumbe Poe][mjumbewu] maintains the [djangorestframework-csv][djangorestframework-csv] package which provides CSV renderer support for REST framework.
 

docs/css/default.css

@@ -103,6 +103,10 @@ pre {
   overflow: hidden;
 }
 
+.nav-list > li > a {
+  padding: 2px 15px 3px;
+}
+
 /* Set the table of contents to static so it flows back into the content when
    viewed on tablets and smaller. */
 @media (max-width: 767px) {