diff --git a/src/assets/img/bg2.png b/src/assets/img/bg2.png
deleted file mode 100644
index 49e7f8b..0000000
Binary files a/src/assets/img/bg2.png and /dev/null differ
diff --git a/src/components/TestPanel.vue b/src/components/TestPanel.vue
index 70b87ef..bfa6a42 100644
--- a/src/components/TestPanel.vue
+++ b/src/components/TestPanel.vue
@@ -630,7 +630,7 @@ export default {
   font-size: 16px;
   margin: 0px 20px 10px 10px;
   white-space: pre-wrap;
-  background: #fff url(../assets/img/bg1.png) top right no-repeat,url(../assets/img/bg2.png) bottom right no-repeat;
+  background: #fff url(../assets/img/bg1.png) top right no-repeat;
 }
 
 ::v-deep .el-collapse-item__wrap {