diff --git a/app/templates/userpage_post.html b/app/templates/userpage_post.html
index c0e044e..a3eb9b6 100644
--- a/app/templates/userpage_post.html
+++ b/app/templates/userpage_post.html
@@ -20,7 +20,8 @@
     <title>EnglishPal Study Room for {{username}}</title>
 </head>
 <body>
-  <p>
+  <div class="container-fluid">
+  <p class="mt-md-3">
     <input type="button" id="btn-cancel-selection" value="取消勾选" onclick="toggleCheckboxSelection(false)" />
     <input type="button" id="btn-selection" value="全部勾选" onclick="toggleCheckboxSelection(true)" />
   </p>
@@ -44,5 +45,6 @@
             <script src="{{ js }}" ></script>
         {% endfor %}
     {% endif %}
+  </div>
 </body>
 </html>
