Index: openacs-4/packages/chat/www/resources/chat.css
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/resources/Attic/chat.css,v
diff -u -r1.9 -r1.10
--- openacs-4/packages/chat/www/resources/chat.css	12 Nov 2018 16:35:32 -0000	1.9
+++ openacs-4/packages/chat/www/resources/chat.css	13 Nov 2018 13:47:33 -0000	1.10
@@ -31,7 +31,7 @@
     right: 0;
     bottom: 0;
     left: 0;
-    zIndex: 999;
+    z-index: 999;
 }
 
 /* Users block */