diff --git a/src/layout/components/AppMain.vue b/src/layout/components/AppMain.vue
index 62e6ace5..9e12c662 100644
--- a/src/layout/components/AppMain.vue
+++ b/src/layout/components/AppMain.vue
@@ -47,3 +47,11 @@ export default {
 }
 </style>
 
+<style lang="scss">
+// fix css style bug in open el-dialog
+.el-popup-parent--hidden {
+  .fixed-header {
+    padding-right: 15px;
+  }
+}
+</style>