diff --git a/assets/css/includes/scroll-bar.css b/assets/css/includes/scroll-bar.css
index d9c85d2..7d3c45f 100644
--- a/assets/css/includes/scroll-bar.css
+++ b/assets/css/includes/scroll-bar.css
@@ -71,4 +71,10 @@
 
 .toc.side::-webkit-scrollbar {
     width: 8px;
+}
+
+/* code */
+
+.highlight pre code::-webkit-scrollbar {
+    height: 6px;
 }
\ No newline at end of file