diff --git a/doc/cn/markdown.md b/doc/cn/markdown.md
index cfe7016a8..9576417cf 100644
--- a/doc/cn/markdown.md
+++ b/doc/cn/markdown.md
@@ -34,4 +34,38 @@
markdownIt.set({ breaks: false });
```
-> [更多设置参考markdown-it...](https://github.com/markdown-it/markdown-it)
\ No newline at end of file
+> [更多设置参考markdown-it...](https://github.com/markdown-it/markdown-it)
+
+### 简单示例
+
+> 注意:`class="markdown-body"` 是必要的,否则CSS样式会于预览的不一样
+
+```html
+
+
+
+
+
+
+
+```
diff --git a/doc/en/markdown.md b/doc/en/markdown.md
index 2fd372dc1..aa16af983 100644
--- a/doc/en/markdown.md
+++ b/doc/en/markdown.md
@@ -34,4 +34,38 @@
markdownIt.set({ breaks: false });
```
-> [markdown-it API](https://github.com/markdown-it/markdown-it)
\ No newline at end of file
+> [markdown-it API](https://github.com/markdown-it/markdown-it)
+
+### Simple example
+
+> Notice:`class="markdown-body"` is necessary, or the CSS style will be different from the preview
+
+```html
+
+
+
+
+
+
+
+```