diff --git a/doc/local_ros_installation.md b/doc/local_ros_installation.md
index 7bd93d70e1aa46bae579820a0ab76d2f9ac749c2..7e720e9ddf7187e76b86824e9b3565401ba68652 100644
--- a/doc/local_ros_installation.md
+++ b/doc/local_ros_installation.md
@@ -12,6 +12,10 @@ See:
 - https://aiics.waraps.org/index.php/lrs-lrs_jupyter-md-single_agent_tst-md/
 for en overview of the available functionality.
 
+<div class="alert alert-dark" role="alert">
+  A simple dark alert—check it out!
+</div>
+
 <hr>
 <hr>
 <hr>