diff --git a/README.md b/README.md
index d61303d..4684b72 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@
 ![](image/flexbox.png)
 ![](image/boxmodel.png)
 ![](image/git.png)
+![](image/cssselector.png)
 
 ### 国内百度云盘下载地址：
 
@@ -21,4 +22,6 @@
 
 [一张图掌握BoxModel](https://www.bilibili.com/video/BV1ni4y1t7jK/)
 
-[一张图掌握Git](https://www.bilibili.com/video/BV1AZ4y1x7Do/)
\ No newline at end of file
+[一张图掌握Git](https://www.bilibili.com/video/BV1AZ4y1x7Do/)
+
+[一张图掌握CSS Selector](https://www.bilibili.com/video/BV1kk4y1R78f)
\ No newline at end of file