diff --git a/style.css b/style.css
index fdc5a92..b6d4e1a 100644
--- a/style.css
+++ b/style.css
@@ -153,6 +153,7 @@ tt {
 footer, #footer, .article #copyright {
   font-size: 0.9em;
   margin-top: 2em;
+  clear: both;
 }
 
 footer .commit-id {