diff --git a/src/views/caseDetail.vue b/src/views/caseDetail.vue
index e223fbe..aa0e584 100644
--- a/src/views/caseDetail.vue
+++ b/src/views/caseDetail.vue
@@ -306,11 +306,13 @@ const onChange=(newIndex)=>{
 
 <style lang='scss' scoped>
 .casemain.on{
-   position: relative;
-   z-index:-1;
   opacity: 1;
+  position: relative;
+  z-index:0;
 }
 .main {
+  position: relative;
+  z-index:-1;
   padding-bottom: 15px;
   opacity: 0;
   width: 100%;