diff --git a/frontend/views/permissions/permission.php b/frontend/views/permissions/permission.php
index 26400ce..fba3055 100644
--- a/frontend/views/permissions/permission.php
+++ b/frontend/views/permissions/permission.php
@@ -12,11 +12,11 @@ use \common\libs\MyLib;
                     <form id="theFrm">
                         <input type="hidden" name="group_id" value="<?=$permissions_id?>">
                         <?php foreach($menu_items as $item) { ?>
-                            <div class="col-md-2">
+                            <div class="col-sm-2">
                                 <div class="panel panel-info">
                                     <div class="panel-heading">
                                         <div class="row">
-                                            <div class="col-md-12">
+                                            <div class="col-sm-12">
                                                 <label class="i-checks">
                                                     <input type="checkbox" class="parent_checkbox" name="menu_ids[]" value="<?=$item->id?>" <?=in_array($item->id, $menu_ids)?'checked':''?>><i></i> <?=$item->name?>
                                                 </label>
@@ -26,7 +26,7 @@ use \common\libs\MyLib;
                                     <div class="panel-body">
                                         <?php foreach($item->menus as $sub_item) { ?>
                                             <div class="row">
-                                                <div class="col-md-12">
+                                                <div class="col-sm-12">
                                                     <label class="i-checks">
                                                         <input type="checkbox" class="sub_checkbox" name="menu_ids[]" value="<?=$sub_item->id?>" <?=in_array($sub_item->id, $menu_ids)?'checked':''?>><i></i> <?=$sub_item->name?>
                                                     </label>
@@ -40,7 +40,7 @@ use \common\libs\MyLib;
                     </form>
                 </div>
                 <div class="row">
-                    <div class="col-md-5 col-md-offset-5">
+                    <div class="col-sm-5 col-sm-offset-5">
                         <button class="btn btn-primary btn-save" type="button">
                             <strong>保 存</strong>
                         </button>