diff --git a/Murach/exercises/ch02/numbers/index.html b/Murach/exercises/ch02/numbers/index.html
index 992d098..a4ac053 100644
--- a/Murach/exercises/ch02/numbers/index.html
+++ b/Murach/exercises/ch02/numbers/index.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
     <head>
         <title>Geometry Calculator</title>
     </head>
-    <body>        
-        <script>
+    <body>
+    <script>
             "use strict";
 
             // get the length of side A and B
