Index: lams_tool_chat/web/pages/monitoring/chatHistory.jsp
===================================================================
diff -u -rc2d46f24ed78fa5274e5af56c9daf5ea6e94f127 -r89aa8c369bdc4f16e8c0abde7994aee7bbfe0950
--- lams_tool_chat/web/pages/monitoring/chatHistory.jsp	(.../chatHistory.jsp)	(revision c2d46f24ed78fa5274e5af56c9daf5ea6e94f127)
+++ lams_tool_chat/web/pages/monitoring/chatHistory.jsp	(.../chatHistory.jsp)	(revision 89aa8c369bdc4f16e8c0abde7994aee7bbfe0950)
@@ -61,11 +61,11 @@
 						<c:choose>
 							<c:when test="${message.hidden}">
 								<input id="cb${message.uid}" name="messageHidden"
-									type="checkbox" checked="checked" />
+									type="checkbox" checked="checked" class="noBorder"/>
 							</c:when>
 							<c:otherwise>
 								<input id="cb${message.uid}" name="messageHidden"
-									type="checkbox" />
+									type="checkbox" class="noBorder"/>
 							</c:otherwise>
 						</c:choose>