diff --git a/theme/index.hbs b/theme/index.hbs
index 3961d6f..e1ab8d9 100644
--- a/theme/index.hbs
+++ b/theme/index.hbs
@@ -137,9 +137,10 @@
                         {{/if}}
                     </div>
 
-                    <h1 class="menu-title">{{ book_title }}</h1>
+                    <h3 class="menu-title">{{ book_title }}</h3>
 
                     <div class="right-buttons">
+			<a href="https://java.xfoss.com" title="Head First Java 中文版" title="Head First Java 中文版">Head First Java 中文</a>
                         {{#if print_enable}}
                         <a href="{{ path_to_root }}print.html" title="Print this book" aria-label="Print this book">
                             <i id="print-button" class="fa fa-print"></i>