diff --git a/docs/old_style.md b/docs/old_style.md
index 2b0edf7..6f1dd4c 100644
--- a/docs/old_style.md
+++ b/docs/old_style.md
@@ -3,8 +3,9 @@
 Root interface for `dfschema` package.
 
 Mostly kept for consistency with earlier interfaces.
-We generally recommend using a `dfschema.DfSchema` class instances
-directly, instead.
+
+!!! note
+    We generally recommend using a `dfschema.DfSchema` class instances directly, instead.
 
 
 ::: dfschema.validate