diff --git a/docs/u_e-mailcow_ui-css.md b/docs/u_e-mailcow_ui-css.md
new file mode 100644
index 000000000..77a23f5bb
--- /dev/null
+++ b/docs/u_e-mailcow_ui-css.md
@@ -0,0 +1,3 @@
+For custom overrides of specific elements via CSS, use `data/web/css/build/0081-custom-mailcow.css`.
+
+The file is excluded from tracking and persists over updates.
diff --git a/mkdocs.yml b/mkdocs.yml
index 666fbc45d..65a3b113a 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -65,6 +65,7 @@ nav:
 - 'Manual/Guides/Examples':
   - 'mailcow UI':
     - 'Configuration': 'u_e-mailcow_ui-config.md'
+    - 'CSS overrides': 'u_e-mailcow_ui-css.md'
     - 'Blacklist / Whitelist': 'u_e-mailcow_ui-bl_wl.md'
     - 'Pushover': 'u_e-mailcow_ui-pushover.md'
     - 'Spamfilter': 'u_e-mailcow_ui-spamfilter.md'