diff --git a/docs/css.html b/docs/css.html
index d4e7f77d2f..86b9f4d655 100644
--- a/docs/css.html
+++ b/docs/css.html
@@ -1757,26 +1757,26 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
     <form class="bs-example" style="padding-bottom: 15px;">
       <div class="row">
         <div class="col-lg-2">
-          <input type="text" placeholder="col-large-2">
+          <input type="text" placeholder=".col-lg-2">
         </div>
         <div class="col-lg-3">
-          <input type="text" placeholder="col-large-3">
+          <input type="text" placeholder=".col-lg-3">
         </div>
         <div class="col-lg-4">
-          <input type="text" placeholder="col-large-4">
+          <input type="text" placeholder=".col-lg-4">
         </div>
       </div>
     </form>
 {% highlight html %}
 <div class="row">
   <div class="col-lg-2">
-    <input type="text" placeholder="col-large-2">
+    <input type="text" placeholder=".col-lg-2">
   </div>
   <div class="col-lg-3">
-    <input type="text" placeholder="col-large-3">
+    <input type="text" placeholder=".col-lg-3">
   </div>
   <div class="col-lg-4">
-    <input type="text" placeholder="col-large-4">
+    <input type="text" placeholder=".col-lg-4">
   </div>
 </div>
 {% endhighlight %}