diff --git a/_layouts/doc.html b/_layouts/doc.html
index 2dab45c36..ee9657484 100644
--- a/_layouts/doc.html
+++ b/_layouts/doc.html
@@ -3,7 +3,7 @@
 ---
 
 <div class="row pt">
-  <div class="col-sm-3 col-lg-3">
+  <div class="col-sm-12 col-md-3">
 
     <div>
 
@@ -29,7 +29,7 @@ <h3>Guides</h3>
 
 
 </div>
-  <div class="col-sm-12 col-lg-6">
+  <div class="col-sm-12 col-md-6">
 
 
     <div class="content page">
@@ -67,7 +67,7 @@ <h1 class="page-title">Search</h1>
     </div>
   </div>
 
-    <div class="col-sm-12 col-lg-3">
+    <div class="col-sm-12 col-md-3">
 
     <!-- <input type="search" class="search" placeholder="live search..."> -->
      <!-- toc.js generated nav... -->