diff --git a/web/app/controllers/submission.php b/web/app/controllers/submission.php
index bda16c9..b589e2f 100644
--- a/web/app/controllers/submission.php
+++ b/web/app/controllers/submission.php
@@ -321,7 +321,7 @@ if (isset($hack_form)) {
 					操作
 				</div>
 
-				<div class="list-group list-group-flush rounded-bottom">
+				<div class="list-group list-group-flush rounded-bottom overflow-hidden">
 					<?php if (isset($minor_rejudge_form)) : ?>
 						<?php $minor_rejudge_form->printHTML() ?>
 					<?php endif ?>