diff --git a/admin/css/style.css b/admin/css/style.css
index 1dca2084..d11ad061 100644
--- a/admin/css/style.css
+++ b/admin/css/style.css
@@ -346,9 +346,8 @@ button {
   font-weight: bold; }
 
 #typecho-nav-list .child {
-  display: none;
   position: absolute;
-  top: 36px;
+  top: -9999em;
   margin: 0;
   min-width: 160px;
   max-width: 240px;
@@ -357,7 +356,7 @@ button {
   z-index: 250; }
 
 #typecho-nav-list .root:hover .child {
-  display: block; }
+  top: 36px; }
 
 #typecho-nav-list .child li a {
   color: #BBB;
diff --git a/admin/manage-comments.php b/admin/manage-comments.php
index 04311b38..7768ccda 100644
--- a/admin/manage-comments.php
+++ b/admin/manage-comments.php
@@ -237,7 +237,7 @@ $(document).ready(function () {
         } else {
             var form = $('<form method="post" action="'
                 + t.attr('rel') + '" class="comment-reply">'
-                + '<p><textarea name="text" class="w-90" rows="3"></textarea></p>'
+                + '<p><label for="text" class="visuallyhidden"><?php _e('内容'); ?></label><textarea id="text" name="text" class="w-90" rows="3"></textarea></p>'
                 + '<p><button type="submit" class="btn-s primary"><?php _e('回复'); ?></button> <button type="button" class="btn-s cancel"><?php _e('取消'); ?></button></p>'
                 + '</form>').insertBefore($('.comment-action', td));
 
diff --git a/admin/scss/_header.scss b/admin/scss/_header.scss
index 4e9d8a8a..ddf02758 100644
--- a/admin/scss/_header.scss
+++ b/admin/scss/_header.scss
@@ -52,9 +52,8 @@
 }
 
 #typecho-nav-list .child {
-  display: none;
   position: absolute;
-  top: 36px;
+  top: -9999em;
   margin: 0;
   min-width: 160px; 
   max-width: 240px;
@@ -64,7 +63,7 @@
 }
 
 #typecho-nav-list .root:hover .child {
-  display: block;
+  top: 36px;
 }
 
 #typecho-nav-list .child li a {