diff --git a/docs/kuji.css b/docs/kuji.css
index 7f238db..9a2d3e3 100644
--- a/docs/kuji.css
+++ b/docs/kuji.css
@@ -5,5 +5,5 @@
 .item {
   background: #87888e;
   color: #ffffff;
-  margin: 10px 10px;
+  margin: 20px 10px;
 }