diff --git a/after.html b/after.html
index 07cdff6..a48d37a 100644
--- a/after.html
+++ b/after.html
@@ -9,4 +9,3 @@
 </footer>
 </div>
 </div>
-</div>
diff --git a/before.html b/before.html
index bee5eb0..cb86352 100644
--- a/before.html
+++ b/before.html
@@ -1,3 +1,2 @@
 <div class="container">
-  <div class="row">
-    <div class="col-xs-12 col-sm-10 col-md-8 col-sm-offset-1 col-md-offset-2">
+  <div class="main-content">
diff --git a/css/base.css b/css/base.css
index 227be7e..e7a160f 100644
--- a/css/base.css
+++ b/css/base.css
@@ -2,13 +2,11 @@ body {
     padding-top: 70px;
 }
 
-/*
-.container-fluid {
+.main-content {
     max-width: 580px;
     margin: auto;
-    margin-top: 40px;
 }
-
+/*
 footer {
     margin-top: 3em;
     color: #999;