diff --git a/web/app/controllers/html2markdown.php b/web/app/controllers/html2markdown.php
index 71999a5..04bbb9c 100644
--- a/web/app/controllers/html2markdown.php
+++ b/web/app/controllers/html2markdown.php
@@ -20,15 +20,16 @@
 	<div class="card-body">
 		<div class="row row-cols-1 row-cols-md-2">
 			<div class="col">
-				<h2 class="h4">HTML 源码</h2>
 				<textarea class="form-control" id="html" placeholder="input html here"></textarea>
 			</div>
 			<div class="col">
-				<h2 class="h4">Markdown 源码</h2>
-				<textarea readonly class="form-control" id="markdown" placeholder="output markdown here"></textarea>
+				<textarea data-no-autosize readonly class="form-control" id="markdown" placeholder="output markdown here" style="height: 100%"></textarea>
 			</div>
 		</div>
 	</div>
+	<div class="card-footer bg-transparent text-end">
+		<a href="https://s2oj.github.io/#/user/apps/html2markdown" target="_blank">使用教程</a>
+	</div>
 </div>
 
 <?= HTML::js_src('/js/h2m.js') ?>
diff --git a/web/app/controllers/image_hosting/index.php b/web/app/controllers/image_hosting/index.php
index 2f0e9ca..967be43 100644
--- a/web/app/controllers/image_hosting/index.php
+++ b/web/app/controllers/image_hosting/index.php
@@ -217,7 +217,7 @@
 				<li>图片上传后会被自动转码为 PNG 格式；</li>
 				<li>在合适的地方插入图片即可引用。</li>
 			</ul>
-			<p class="small">更多信息可以查看 <a href="https://s2oj.github.io/#/user/image_hosting" target="_blank">使用文档</a>。</p>
+			<p class="small">更多信息可以查看 <a href="https://s2oj.github.io/#/user/apps/image_hosting" target="_blank">使用文档</a>。</p>
 		</div>
 		<div class="col-12 col-md-5 col-lg-3 order-4 order-md-3 order-lg-4 mt-3 mt-md-0 ms-md-2">
 			<h2 class="h4">使用统计</h2>
diff --git a/web/app/views/page-header.php b/web/app/views/page-header.php
index 0d6f499..151f4f3 100644
--- a/web/app/views/page-header.php
+++ b/web/app/views/page-header.php
@@ -69,7 +69,7 @@
 		<?= HTML::js_src('/js/jquery.autosize.min.js') ?>
 		<script type="text/javascript">
 			$(document).ready(function() {
-				$('textarea').autosize();
+				$('textarea:not([data-no-autosize])').autosize();
 			});
 		</script>