diff --git a/understanding/22/focus-not-obscured-minimum.html b/understanding/22/focus-not-obscured-minimum.html
index 78ffdb1468..38f2ad1c76 100644
--- a/understanding/22/focus-not-obscured-minimum.html
+++ b/understanding/22/focus-not-obscured-minimum.html
@@ -99,7 +99,7 @@
User openable, persistent disclosures
-->
- When focus leaves the additional content, the additional content is automatically hidden or collapsed, or the content can be hidden or collapsed by use of a dedicated keyboard command (for example, the Escape key.) This is very similar to patterns discussed previously under Non-persistent opened information. A distinguishing factor can be that the user's last point of interaction in the disclosure is preserved (it persists) even though it may be hidden until a user returns. Some trees and left navigation patterns behave this way.
+ When focus leaves the additional content, the additional content is automatically hidden or collapsed, or the content can be hidden or collapsed by use of a dedicated keyboard command (for example, the Escape key.) This is very similar to patterns discussed previously under Non-persistent opened information. A distinguishing factor can be that the user's last point of interaction in the disclosure is preserved (it persists) even though it may be hidden until a user returns. Some trees and side navigation patterns behave this way.