From 660c981515ecd1a40a01f6d0421d678520fa243a Mon Sep 17 00:00:00 2001
From: zaccodes <bboysanie@gmail.com>
Date: Sun, 18 Nov 2018 16:29:28 +0200
Subject: [PATCH] Update the example to reflect the prefix (#22241)

---
 guide/english/html/responsive-web-design/index.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guide/english/html/responsive-web-design/index.md b/guide/english/html/responsive-web-design/index.md
index dd230fb45b..2532c3b13c 100644
--- a/guide/english/html/responsive-web-design/index.md
+++ b/guide/english/html/responsive-web-design/index.md
@@ -42,7 +42,7 @@ CSS frameworks like [Bootstrap](https://www.getbootstrap.com/), [Material Design
 In this example, `col-md-9` and `col-sm-6` set the width of the `<div>` tag based on whether the screen is small or medium.
 
 ```html
-<div class="col-12 col-md-6"></div>
+<div class="col-12 col-md-9 col-sm-6"></div>
 ```
 
 The Bootstrap framework divides a row into twelve columns. In the above example, the `<div>` will spread across either nine or six of them. The grid system, pictured below, is fundamental to how Bootstrap eases responsive design.