From 3160a4ff9b106a1081dda4b5bedfa7f2ce0e81c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=83=A1=E6=A1=83=E4=BB=81?= <zhaozeren_1994@outlook.com>
Date: Thu, 30 Nov 2023 11:43:15 +0800
Subject: [PATCH] doc: add class="nav-sidebar" to <ul>, in order to collapse
 Multilevel.

---
 docs/javascript/treeview.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/javascript/treeview.md b/docs/javascript/treeview.md
index 5829211a039..9f118d6a5e2 100644
--- a/docs/javascript/treeview.md
+++ b/docs/javascript/treeview.md
@@ -14,7 +14,7 @@ This plugin can be activated as a jQuery plugin or using the data api.
 Add `data-widget="treeview"` to any `ul` or `ol` element to activate the plugin. 
 
 ```html
-<ul data-widget="treeview">
+<ul class="nav-sidebar" data-widget="treeview">
   <li><a href="#">One Level</a></li>
   <li class="nav-item">
     <a class="nav-link" href="#">Multilevel</a>