diff --git a/fine-third-default/readme.md b/fine-third-default/readme.md
new file mode 100644
index 000000000..dbaf68be0
--- /dev/null
+++ b/fine-third-default/readme.md
@@ -0,0 +1 @@
+用于针对性的修改原3rd中的class
\ No newline at end of file