diff --git a/src/rer/newsletter/browser/message/messagepreview.py b/src/rer/newsletter/browser/message/messagepreview.py
index 59da806a..47b04143 100644
--- a/src/rer/newsletter/browser/message/messagepreview.py
+++ b/src/rer/newsletter/browser/message/messagepreview.py
@@ -17,6 +17,9 @@
     margin-right: 1em;
     float: left;
 }
+#footer {
+    clear: both;
+}
 """