diff --git a/src/views/teacher/SubmissionSuccess.vue b/src/views/teacher/SubmissionSuccess.vue
index dc381bd..900ed1f 100644
--- a/src/views/teacher/SubmissionSuccess.vue
+++ b/src/views/teacher/SubmissionSuccess.vue
@@ -55,6 +55,6 @@
     background-image: url("https://lw-zk.oss-cn-hangzhou.aliyuncs.com/inviteReception/tijiao_BG.png");
     background-repeat: no-repeat;
     background-position: right top;
-    background-size: auto 263px;
+    background-size: auto 375px;
   }
 </style>