diff --git a/src/less/core/wrapper/flex.leftrightvertical.center.less b/src/less/core/wrapper/flex.leftrightvertical.center.less
index 594c37853..a56cbbb61 100644
--- a/src/less/core/wrapper/flex.leftrightvertical.center.less
+++ b/src/less/core/wrapper/flex.leftrightvertical.center.less
@@ -2,6 +2,7 @@
   > .flex-left-auto {
     margin-left: auto;
 
+    // 当隐藏的元素出现在中间某个元素的情况
     + .flex-left-auto.invisible {
       + .flex-left-auto {
         margin-left: initial;