diff --git a/src/views/caseDetail.vue b/src/views/caseDetail.vue
index 6d63972..ad2b41c 100644
--- a/src/views/caseDetail.vue
+++ b/src/views/caseDetail.vue
@@ -318,7 +318,7 @@ const onChange=(newIndex)=>{
 }
 .casemain{
   position: relative;
-  z-index:-100;
+  z-index:-1000;
   height:0px;
   display: none;
   opacity: 0;