diff --git a/docs/index.html b/docs/index.html
index d315881c..6f9a7050 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -46,6 +46,10 @@
 
     .sidebar-toggle {}
 
+    .docsify-copy-code-button {
+        background: #42b983 !important;
+    }
+
     body {
         /*font-family: Microsoft YaHei, Source Sans Pro, Helvetica Neue, Arial, sans-serif !important;*/
     }