diff --git a/src/core/templates/layout.html b/src/core/templates/layout.html
index d441345..885b421 100644
--- a/src/core/templates/layout.html
+++ b/src/core/templates/layout.html
@@ -14,6 +14,7 @@
+
{% block header_css_additional %}
{% endblock header_css_additional %}