Index: source/components/dropdown.rst
===================================================================
--- source/components/dropdown.rst
+++ source/components/dropdown.rst
@@ -73,4 +73,8 @@
 -  If certain controls in a configuration dialog are only relevant if a
    certain item is selected (i.e. they are dependent controls), disable
    them instead of hiding.
--  Label the drop down with a
+-  Label the drop down with a descriptive caption to the left (cf.
+   :doc:`alignment </layout/alignment>)`.
+-  Create a buddy relation so access keys are assigned.
+-  End each label with a colon.
+-  Use :doc:`sentence style capitalization </style/writing/capitalization>` for items.