diff --git a/docs/syntax.md b/docs/syntax.md
index e36ca1f..36703d7 100644
--- a/docs/syntax.md
+++ b/docs/syntax.md
@@ -1,4 +1,13 @@
-<h1>目次</h2>
+<style>
+h1 {
+	margin-top: 4rem;
+}
+h1.head {
+	margin-top: 0;
+}
+</style>
+
+<h1 class="head">目次</h2>
 
 ブロック構文:
 - [引用ブロック](#quote)