修复bug

src/assets/styles/sidebar.scss

@@ -189,6 +189,10 @@
     }
   }
 }
+/* 用于遮盖elementui下拉框的悬浮框*/
+.vue-treeselect__menu-container{
+  z-index: 3000 !important;
+}
 
 // when menu collapsed
 .el-menu--vertical {

src/views/system/bind/index.vue

@@ -441,9 +441,3 @@ export default {
   }
 };
 </script>
-
-<style lang="scss">
-.vue-treeselect__menu-container{
-  z-index: 3000 !important;
-}
-</style>