diff --git a/dl_vue/src/views/busi/chatMain/messageList.vue b/dl_vue/src/views/busi/chatMain/messageList.vue
index 99db259..ad5455b 100644
--- a/dl_vue/src/views/busi/chatMain/messageList.vue
+++ b/dl_vue/src/views/busi/chatMain/messageList.vue
@@ -215,6 +215,7 @@ export default {
 
 <style scoped>
 .session-list {
+  z-index: 999;
   max-width: 350px;
   max-height: 400px;
   position: absolute;