diff --git a/css.html b/css.html
index 965bdc5481..48d963cf48 100644
--- a/css.html
+++ b/css.html
@@ -1797,14 +1797,14 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
     <div class="bs-example">
       <form class="form-horizontal" role="form">
         <div class="form-group">
-          <label class="col-lg-2 control-label">Email</label>
-          <div class="col-lg-10">
+          <label class="col-sm-2 control-label">Email</label>
+          <div class="col-sm-10">
             <p class="form-control-static">email@example.com</p>
           </div>
         </div>
         <div class="form-group">
-          <label for="inputPassword" class="col-lg-2 control-label">Password</label>
-          <div class="col-lg-10">
+          <label for="inputPassword" class="col-sm-2 control-label">Password</label>
+          <div class="col-sm-10">
             <input type="password" class="form-control" id="inputPassword" placeholder="Password">
           </div>
         </div>
@@ -1813,14 +1813,14 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
 {% highlight html %}
 <form class="form-horizontal" role="form">
   <div class="form-group">
-    <label class="col-lg-2 control-label">Email</label>
-    <div class="col-lg-10">
+    <label class="col-sm-2 control-label">Email</label>
+    <div class="col-sm-10">
       <p class="form-control-static">email@example.com</p>
     </div>
   </div>
   <div class="form-group">
-    <label for="inputPassword" class="col-lg-2 control-label">Password</label>
-    <div class="col-lg-10">
+    <label for="inputPassword" class="col-sm-2 control-label">Password</label>
+    <div class="col-sm-10">
       <input type="password" class="form-control" id="inputPassword" placeholder="Password">
     </div>
   </div>