diff --git a/.DS_Store b/.DS_Store
index 9d3ea503d8..9130f55934 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/.gitignore b/.gitignore
index 64169c81df..ebb551494f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,5 @@ ja/support/.DS_Store
 .DS_Store
 
 .DS_Store
+
+.DS_Store
diff --git a/docs/static/groonga.css b/docs/static/groonga.css
index 8e4e00f89e..67d52d619f 100644
--- a/docs/static/groonga.css
+++ b/docs/static/groonga.css
@@ -195,7 +195,7 @@ div.body h6
     margin: 0;
     padding-bottom: 10px;
     position: relative;
-    border-bottom: 3px solid #FAFAFA;
+    /*border-bottom: 3px solid #FAFAFA;*/
     color: #000;
     font-weight: bold;
 }
@@ -212,6 +212,15 @@ div.body h1{
 
 div.body h2{
 	font-size:large;
+	padding:10px 0;
+	border-bottom: 3px solid #DDD;
+
+}
+
+div.body h3{
+	font-size:medium;
+	padding:10px 0 0 0;
+	border-bottom:1px solid #EEE;
 }
 
 
diff --git a/ja/docs/static/groonga.css b/ja/docs/static/groonga.css
index 8ff8c354f0..309b0eb5c9 100644
--- a/ja/docs/static/groonga.css
+++ b/ja/docs/static/groonga.css
@@ -195,7 +195,7 @@ div.body h6
     margin: 0;
     padding-bottom: 10px;
     position: relative;
-    border-bottom: 3px solid #FAFAFA;
+    /*border-bottom: 3px solid #FAFAFA;*/
     color: #000;
     font-weight: bold;
 }
@@ -212,6 +212,15 @@ div.body h1{
 
 div.body h2{
 	font-size:large;
+	padding:10px 0;
+	border-bottom: 3px solid #DDD;
+
+}
+
+div.body h3{
+	font-size:medium;
+	padding:10px 0 0 0;
+	border-bottom:1px solid #EEE;
 }