diff --git a/app/templates/settings.html b/app/templates/settings.html
index 1568536..ed60116 100644
--- a/app/templates/settings.html
+++ b/app/templates/settings.html
@@ -12,8 +12,7 @@
 <div class="alert alert-error">{{ error }}</div>
 {% endif %}
 
-<div style="max-width:560px;margin:0 auto">
-<div class="form-card" style="padding:1.5rem 2rem">
+<div class="form-card">
     <h3 style="margin-bottom:.75rem">修改用户名</h3>
     <form method="post" action="/settings/change-username">
         <label>当前用户名</label>
@@ -40,5 +39,4 @@
         </div>
     </form>
 </div>
-</div>
 {% endblock %}