diff --git a/src/layout/components/AppMain.vue b/src/layout/components/AppMain.vue
index e72e4555..92ca2c88 100644
--- a/src/layout/components/AppMain.vue
+++ b/src/layout/components/AppMain.vue
@@ -49,3 +49,11 @@ export default {
 }
 </style>
 
+<style lang="scss">
+// fix css style bug in open el-dialog
+.el-popup-parent--hidden {
+  .fixed-header {
+    padding-right: 15px;
+  }
+}
+</style>