diff --git a/src/c3nav/site/static/site/css/c3nav.scss b/src/c3nav/site/static/site/css/c3nav.scss
index bec4ec77..dc46e355 100644
--- a/src/c3nav/site/static/site/css/c3nav.scss
+++ b/src/c3nav/site/static/site/css/c3nav.scss
@@ -103,6 +103,7 @@ hr {
 
 main {
     flex-grow: 1;
+    background-color: #CCCCCC;
     border: 0 solid #CCCCCC;
     border-top-width: 1px;
     padding: 10px;