-.Tp Cx Ic \&~:
-.Ar mail-command
-.Cx
-Execute the given mail command. Not all commands, however, are allowed.
-.Tp Cx Ic \&~~
-.Ar string
-.Cx
-Insert the string of text in the message prefaced by a single ~. If
+.It Ic \&~: Ns Ar mail-command
+Execute the given mail command.
+Not all commands, however, are allowed.
+.It Ic \&~~ Ns Ar string
+Insert the string of text in the message prefaced by a single ~.
+If