fix: menu flash #3951

tangjinzhou · tangjinzhou · commit 5cec702e0c8c · 2021-04-17T07:53:08.000+08:00
diff --git a/.gitignore b/.gitignore
@@ -73,3 +73,4 @@ list.txt
 
 site/dev.js
 v2-doc/
+vetur/
diff --git a/components/menu/style/index.less b/components/menu/style/index.less
@@ -190,7 +190,6 @@
     &-popup {
       position: absolute;
       z-index: @zindex-dropdown;
-      background: @menu-popup-bg;
       border-radius: @border-radius-base;
 
       .submenu-title-wrapper {
