diff --git a/docs/_includes/css/grid.html b/docs/_includes/css/grid.html
index 8ff53dd710..f1ee7fcd1a 100644
--- a/docs/_includes/css/grid.html
+++ b/docs/_includes/css/grid.html
@@ -353,10 +353,10 @@
       Level 1: .col-md-9
       <div class="row show-grid">
         <div class="col-xs-8 col-sm-6">
-          Level 2: .col-xs-8 .col-md-6
+          Level 2: .col-xs-8 .col-sm-6
         </div>
         <div class="col-xs-4 col-sm-6">
-          Level 2: .col-xs-4 .col-md-6
+          Level 2: .col-xs-4 .col-sm-6
         </div>
       </div>
     </div>
@@ -364,13 +364,13 @@
 {% highlight html %}
 <div class="row">
   <div class="col-sm-9">
-    Level 1: .col-md-9
+    Level 1: .col-sm-9
     <div class="row">
       <div class="col-xs-8 col-sm-6">
-        Level 2: .col-xs-8 .col-md-6
+        Level 2: .col-xs-8 .col-sm-6
       </div>
       <div class="col-xs-4 col-sm-6">
-        Level 2: .col-xs-4 .col-md-6
+        Level 2: .col-xs-4 .col-sm-6
       </div>
     </div>
   </div>