diff --git a/app/views/admins/shixuns/index.html.erb b/app/views/admins/shixuns/index.html.erb
index 4348f0f45..7c6264928 100644
--- a/app/views/admins/shixuns/index.html.erb
+++ b/app/views/admins/shixuns/index.html.erb
@@ -23,20 +23,21 @@
           <%= select_tag(:search_type, options_for_select(auto_trial_options), class: 'form-control') %>
         </div>
         <%= text_field_tag(:keyword, params[:keyword], class: 'form-control col-sm-2 ml-3', placeholder: '输入关键字搜索') %>
-        <div class="">
-          <a href="javascript:void(0)" class="btn btn-primary" id="shixuns-export" data-disable-with = '导出中...'>导出</a>
-        </div>
       </div>
 
       <div class="d-flex mt-3">
-        <div class="form-group">
+        <div class="form-group flex-1">
           <label for="status">fork原因：</label>
           <% fork_status_options = [['全部', ''], ["全部fork实训", "Fork"], ["实训内容升级", 'Shixun'], ["课堂教学使用", 'Course'],["实践课程使用",'Subject'],["其他原因",'Other']] %>
           <%= select_tag(:fork_status, options_for_select(fork_status_options), class: 'form-control') %>
         </div>
 
-        <%= submit_tag('搜索', class: 'btn btn-primary ml-3','data-disable-with': '搜索中...') %>
-        <%= link_to "清除", admins_shixuns_path,class: "btn btn-default",id:"shixuns-clear-search",'data-disable-with': '清除中...' %>
+        <div class="flex-1">
+          <%= submit_tag('搜索', class: 'btn btn-primary ml-3','data-disable-with': '搜索中...') %>
+          <%= link_to "清除", admins_shixuns_path,class: "btn btn-default",id:"shixuns-clear-search",'data-disable-with': '清除中...' %>
+        </div>
+
+        <a href="javascript:void(0)" class="btn btn-primary" id="shixuns-export" data-disable-with = '导出中...'>导出</a>
       </div>
     </div>
 <% end %>