diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index d55ce3f0de..d066288f0e 100644
Binary files a/docs/assets/bootstrap.zip and b/docs/assets/bootstrap.zip differ
diff --git a/docs/base-css.html b/docs/base-css.html
index 22025bbb2e..b345a8434e 100644
--- a/docs/base-css.html
+++ b/docs/base-css.html
@@ -985,7 +985,7 @@ For example, <code>section</code> should be wrapped as inline.
         </fieldset>
       </form>
       <h3>Example markup</h3>
-      <p>Given the above example form layout, here's the markup associated with the first input and control group.</p>
+      <p>Given the above example form layout, here's the markup associated with the first input and control group. The <code>.control-group</code>, <code>.control-label</code>, and <code>.controls</code> classes are all required for styling.</p>
 <pre class="prettyprint linenums">
 &lt;form class="form-horizontal"&gt;
   &lt;fieldset&gt;
diff --git a/docs/templates/pages/base-css.mustache b/docs/templates/pages/base-css.mustache
index e3420ed092..c23444a07a 100644
--- a/docs/templates/pages/base-css.mustache
+++ b/docs/templates/pages/base-css.mustache
@@ -909,7 +909,7 @@
         </fieldset>
       </form>
       <h3>{{_i}}Example markup{{/i}}</h3>
-      <p>{{_i}}Given the above example form layout, here's the markup associated with the first input and control group.{{/i}}</p>
+      <p>{{_i}}Given the above example form layout, here's the markup associated with the first input and control group. The <code>.control-group</code>, <code>.control-label</code>, and <code>.controls</code> classes are all required for styling.{{/i}}</p>
 <pre class="prettyprint linenums">
 &lt;form class="form-horizontal"&gt;
   &lt;fieldset&gt;