diff --git a/Introduction to CSS/Lesson 3/index.html b/Introduction to CSS/Lesson 3/index.html
index 57ae0953..810e0fe7 100644
--- a/Introduction to CSS/Lesson 3/index.html	
+++ b/Introduction to CSS/Lesson 3/index.html	
@@ -20,7 +20,7 @@ <h1 class="band-name band-name-large">The Generics</h1>
             </div>
             <button type="button" class="btn btn-header btn-play">&#9658;</button>
         </header>
-        <section class="content-section container">
+        <section class="content-section main-content-container">
             <h2 class="section-header">TOURS</h2>
             <div>
                 <div class="tour-row">
@@ -84,4 +84,4 @@ <h3 class="band-name">The Generics</h3>
             </div>
         </footer>
     </body>
-</html>
\ No newline at end of file
+</html>