diff --git a/resources/views/welcome.blade.php b/resources/views/welcome.blade.php
index e4cfe4b..81736ea 100644
--- a/resources/views/welcome.blade.php
+++ b/resources/views/welcome.blade.php
@@ -12,8 +12,18 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css" rel="stylesheet" />
 
     <style>
+        .page-container {
+            display: flex;
+            flex-direction: column;
+            min-height: 100vh;
+        }
+
+        .main-content {
+            flex-grow: 1;
+        }
+
         .footer {
-            position: fixed;
+            flex-shrink: 0;
             bottom: 0;
             width: 100%;
             text-align: center;
@@ -57,102 +67,106 @@
             color: #495057;
             background-color: #fff;
             background-clip: padding-box;
-            transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
+            transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
         }
+
         #modalIframe:focus {
             color: #495057;
             background-color: #fff;
             border-color: #80bdff;
             outline: 0;
-            box-shadow: 0 0 0 .2rem rgba(0,123,255,.25);
+            box-shadow: 0 0 0 .2rem rgba(0, 123, 255, .25);
         }
     </style>
 </head>
 
 <body>
-    <nav class="navbar navbar-expand-lg navbar-light bg-light">
-        <a class="navbar-brand" href="/">{{config('app.name')}}</a>
-        <div class="collapse navbar-collapse" id="navbarNav">
-            <ul class="navbar-nav mr-auto">
-                <li class="nav-item active">
-                    <a class="nav-link" href="/">首页 <span class="sr-only">(current)</span></a>
-                </li>
-                <li class="nav-item">
-                    <a class="nav-link" href="#">链接</a>
-                </li>
-            </ul>
+    <div class="page-container">
+        <div class="main-content">
+            <nav class="navbar navbar-expand-lg navbar-light bg-light">
+                <a class="navbar-brand" href="/">{{config('app.name')}}</a>
+                <div class="collapse navbar-collapse" id="navbarNav">
+                    <ul class="navbar-nav mr-auto">
+                        <li class="nav-item active">
+                            <a class="nav-link" href="/">首页 <span class="sr-only">(current)</span></a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link" href="#">链接</a>
+                        </li>
+                    </ul>
 
-        </div>
-    </nav>
+                </div>
+            </nav>
 
-    <div class="container mt-3">
-        <div class="row">
+            <div class="container mt-3">
+                <div class="row">
+
+                    <div class="col-5">
+                        <div class="input-group mb-3">
+                            <input type="text" class="form-control" id="inputText" value="{{$rand_prefix}}"
+                                placeholder="Enter text">
+                            <div class="input-group-append">
+                                <span class="input-group-text">@</span>
+                            </div>
+                            <select class="form-control select2" id="selectOption" style="width: auto;">
+                                @foreach($domain_list as $domain)
+                                <option value="{{$domain}}">{{$domain}}</option>
+                                @endforeach
+                            </select>
+                        </div>
 
-            <div class="col-5">
-                <div class="input-group mb-3">
-                    <input type="text" class="form-control" id="inputText" value="{{$rand_prefix}}"
-                        placeholder="Enter text">
-                    <div class="input-group-append">
-                        <span class="input-group-text">@</span>
                     </div>
-                    <select class="form-control select2" id="selectOption" style="width: auto;">
-                        @foreach($domain_list as $domain)
-                        <option value="{{$domain}}">{{$domain}}</option>
-                        @endforeach
-                    </select>
-                </div>
+                    <div class="col-3">
+                        <div class="input-group mb-3">
 
-            </div>
-            <div class="col-3">
-                <div class="input-group mb-3">
+                            <button id="saveBtn" class="btn btn-primary btn-save" style="margin-right: 5px;"
+                                type="button">修改邮箱</button>
+                            <input type="hidden" value="" id="mailToCopy">
 
-                    <button id="saveBtn" class="btn btn-primary btn-save" style="margin-right: 5px;"
-                        type="button">修改邮箱</button>
-                    <input type="hidden" value="" id="mailToCopy">
-
-                    <button id="copyBtn" class="btn btn-info copy-btn" data-clipboard-target="#mailToCopy"
-                        type="button">复制邮箱</button>
-                </div>
-            </div>
-            <div class="col-4">
-                <div class="input-group mb-3">
-                    <input type="text" class="form-control alert alert-primary" id="auto-reload" value="距离下次刷新还有10秒"
-                        disabled readonly>
-                </div>
-            </div>
-            <div class="col-12">
-                <div class="table-responsive">
-                    <table class="table table-sm">
-                        <thead>
-                            <tr>
-                                <th>发件人</th>
-                                <th>标题</th>
-                                <th>接收时间</th>
-                                <th>操作</th>
-                            </tr>
-                        </thead>
-                        <tbody id="mail-list">
-                            <tr id="default-note">
-                                <td colspan="4">
-                                    <div class="alert alert-primary" role="alert">
-                                        还没收到邮件哦
-                                    </div>
-                                </td>
-                            </tr>
-                            <!-- 更多行 -->
-                        </tbody>
-                    </table>
+                            <button id="copyBtn" class="btn btn-info copy-btn" data-clipboard-target="#mailToCopy"
+                                type="button">复制邮箱</button>
+                        </div>
+                    </div>
+                    <div class="col-4">
+                        <div class="input-group mb-3">
+                            <input type="text" class="form-control alert alert-primary" id="auto-reload"
+                                value="距离下次刷新还有10秒" disabled readonly>
+                        </div>
+                    </div>
+                    <div class="col-12">
+                        <div class="table-responsive">
+                            <table class="table table-sm">
+                                <thead>
+                                    <tr>
+                                        <th>发件人</th>
+                                        <th>标题</th>
+                                        <th>接收时间</th>
+                                        <th>操作</th>
+                                    </tr>
+                                </thead>
+                                <tbody id="mail-list">
+                                    <tr id="default-note">
+                                        <td colspan="4">
+                                            <div class="alert alert-primary" role="alert">
+                                                还没收到邮件哦
+                                            </div>
+                                        </td>
+                                    </tr>
+                                    <!-- 更多行 -->
+                                </tbody>
+                            </table>
+                        </div>
+                    </div>
                 </div>
             </div>
         </div>
+        <footer class="footer">
+            <div class="container">
+                <span class="text-muted">版权所有 © 2023</span>
+            </div>
+        </footer>
     </div>
 
-    <footer class="footer">
-        <div class="container">
-            <span class="text-muted">版权所有 © 2023</span>
-        </div>
-    </footer>
-
     <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel"
         aria-hidden="true">
         <div class="modal-dialog modal-xl" role="document">
