diff --git a/css/theme/lca2019.css b/css/theme/lca2019.css
index d2b09db..5beea8c 100644
--- a/css/theme/lca2019.css
+++ b/css/theme/lca2019.css
@@ -42,7 +42,7 @@ body {
 
 .reveal .footer .url {
     position: absolute;
-    margin-bottom: 30px;
+    padding-bottom: 30px;
 }
 
 .reveal .footer .theme {