diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index b44635e..dec8332 100755
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -35,7 +35,7 @@
       {{ end }}
   </head>
 
-  <body class="ma0 avenir bg-near-white{{ with getenv "HUGO_ENV" }} {{ . }}{{ end }}">
+  <body class="ma0 {{ $.Param "body_classes"  | default "avenir bg-near-white"}}{{ with getenv "HUGO_ENV" }} {{ . }}{{ end }}">
 
     {{ block "header" . }}{{ partial "site-header.html" .}}{{ end }}
     <main class="pb7" role="main">
