diff --git a/chapter6/flex-order.html b/chapter6/flex-order.html
index d25f08c..4c81e4b 100644
--- a/chapter6/flex-order.html
+++ b/chapter6/flex-order.html
@@ -23,13 +23,13 @@
             flex: 1;
         }
 
-        .cards:nth-child(1) {
+        .cards li:nth-child(1) {
             order: 3;
         }
-        .cards:nth-child(2) {
+        .cards li:nth-child(2) {
             order: 1;
         }
-        .cards:nth-child(3) {
+        .cards li:nth-child(3) {
             order: 2;
         }
 
@@ -67,4 +67,4 @@ <h2>Card 3</h2>
 	 
     </div>
 </body>
-</html>
\ No newline at end of file
+</html>