diff --git a/unravel/docs/guide.md b/unravel/docs/guide.md
index 67bc1bc4..f29d8e12 100644
--- a/unravel/docs/guide.md
+++ b/unravel/docs/guide.md
@@ -119,3 +119,8 @@ clean_tifs -t <dir_name> -v -m -e $DIRS
 Add support for CCFv3 2020
 ```
 
+:::{note}
+:class: dropdown
+
+Testing
+:::
\ No newline at end of file