diff --git a/README.md b/README.md
index 81bd1e65..7fc70879 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <div align="center">
-<a href="https://github.com/CyC2018/CS-Notes/blob/master/other/download.md">离线阅读版本下载</a>
+<a href="https://github.com/CyC2018/CS-Notes/blob/master/other/download.md"><strong>离线阅读版本下载</strong></a>
 </div>
 
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