diff --git a/src/oj/submission/detail.vue b/src/oj/submission/detail.vue
index 24f6ff1..a05d046 100644
--- a/src/oj/submission/detail.vue
+++ b/src/oj/submission/detail.vue
@@ -86,5 +86,6 @@ onMounted(init)
 <style scoped>
 .code {
   font-size: 20px;
+  overflow: auto;
 }
 </style>