diff --git a/tests/website/theme/html/404.html b/tests/website/theme/html/404.html
index 4b4964b7..706c561b 100644
--- a/tests/website/theme/html/404.html
+++ b/tests/website/theme/html/404.html
@@ -174,8 +174,8 @@
Download PDF
-
-
+
+
diff --git a/tests/website/theme/html/about_lectures.html b/tests/website/theme/html/about_lectures.html
index 8b4d2bc8..41c510e0 100644
--- a/tests/website/theme/html/about_lectures.html
+++ b/tests/website/theme/html/about_lectures.html
@@ -362,8 +362,8 @@