fix

src/modules/portal/views/home/SiteMessageDetail.vue

@@ -94,6 +94,8 @@ export default {
   background-color: #ffffff;
   text-align: center;
   min-height: 400px;
-  overflow-y: auto;
+}
+.site-message-content {
+  overflow: auto;
 }
 </style>