--- loncom/interface/loncommon.pm	2024/10/12 21:41:25	1.1442
+++ loncom/interface/loncommon.pm	2024/10/13 22:14:58	1.1443
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1442 2024/10/12 21:41:25 raeburn Exp $
+# $Id: loncommon.pm,v 1.1443 2024/10/13 22:14:58 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -7298,6 +7298,16 @@ form, .inline {
   display: inline;
 }
 
+.LC_visually_hidden:not(:focus):not(:active) {
+    clip-path: inset(50%);
+    height: 1px;
+    overflow: hidden;
+    position: absolute;
+    white-space: nowrap;
+    width: 1px;
+    display: inline;
+}
+
 .LC_menus_content.shown{
   display: block;
 }