diff --git a/css.html b/css.html
index 15682d97b6..3254f84b2f 100644
--- a/css.html
+++ b/css.html
@@ -1305,7 +1305,7 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
         </div>
       </div>
       <div class="form-group">
-        <div class="col-offset-2 col-lg-10">
+        <div class="col-lg-offset-2 col-lg-10">
           <div class="checkbox">
             <label>
               <input type="checkbox"> Remember me
@@ -1314,7 +1314,7 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
         </div>
       </div>
       <div class="form-group">
-        <div class="col-offset-2 col-lg-10">
+        <div class="col-lg-offset-2 col-lg-10">
           <button type="submit" class="btn btn-default">Sign in</button>
         </div>
       </div>
@@ -1334,7 +1334,7 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
     </div>
   </div>
   <div class="form-group">
-    <div class="col-offset-2 col-lg-10">
+    <div class="col-lg-offset-2 col-lg-10">
       <div class="checkbox">
         <label>
           <input type="checkbox"> Remember me
@@ -1343,7 +1343,7 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
     </div>
   </div>
   <div class="form-group">
-    <div class="col-offset-2 col-lg-10">
+    <div class="col-lg-offset-2 col-lg-10">
       <button type="submit" class="btn btn-default">Sign in</button>
     </div>
   </div>