diff --git a/exampleSite/content/post/三维方向的思考/index.zh-cn.md b/exampleSite/content/post/三维方向的思考/index.zh-cn.md
index ec892d6..2a1cb11 100644
--- a/exampleSite/content/post/三维方向的思考/index.zh-cn.md
+++ b/exampleSite/content/post/三维方向的思考/index.zh-cn.md
@@ -39,4 +39,5 @@ This article offers a sample of basic Markdown.
 
 视频:[教学视频](https://www.bilibili.com/video/BV1FD4y1i7Dy/?share_source=copy_web&vd_source=9a022d27a757e495adc6e15743c4ec1d)
 
-<font color=red>下面来讲一下叉乘</font>
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+<font color=red>下面来讲一下叉乘</font>:这个很重要:<font color=orange>右手定则,叉乘结果的方向,叉乘a与b的先后顺序</font>
+