diff --git a/css/home.css b/css/home.css
index fbcc18f19d33edca384cba9220a891ee8e0ce57e..299d3fadc2026503cf1c948427fb5b6890c0c32b 100644
--- a/css/home.css
+++ b/css/home.css
@@ -2398,19 +2398,22 @@ header.site-header .top-nav .site-links > li > a {
   line-height: 60px;
   padding: 0 20px;
   color: rgba(255, 255, 255, 0.7);
+  /*&.active,*/
 }
-header.site-header .top-nav .site-links > li > a.active,
 header.site-header .top-nav .site-links > li > a:hover {
-  color: #fff;
+  color: #0073eb;
+  background-color: #222222;
 }
 header.site-header .top-nav .version-switcher {
   position: relative;
   display: inline-block;
+  width: 100px;
   height: 60px;
   float: left;
 }
 header.site-header .top-nav .version-switcher:hover > a {
   color: #fff;
+  cursor: default;
 }
 header.site-header .top-nav .version-switcher:hover > a .fa::before {
   content: "\F106";
@@ -2427,10 +2430,10 @@ header.site-header .top-nav .version-switcher > a .fa::before {
 }
 header.site-header .top-nav .version-switcher ul {
   display: none;
-  top: 50px;
-  width: 60px;
+  top: 60px;
+  width: 100px;
   text-align: center;
-  line-height: 30px;
+  line-height: 50px;
   background: rgba(0, 0, 0, 0.85);
   color: #0073eb;
   position: absolute;
@@ -2438,9 +2441,13 @@ header.site-header .top-nav .version-switcher ul {
 }
 header.site-header .top-nav .version-switcher ul > li > a {
   color: #ababab;
+  width: 99px;
+  height: 50px;
+  display: block;
 }
 header.site-header .top-nav .version-switcher ul > li > a:hover {
   color: #0073eb;
+  background-color: #222;
 }
 header.site-header .top-nav .version-switcher:hover ul {
   display: inline-block;
diff --git a/index.cn.html b/index.cn.html
index dcc21704ad20deaceeb625d7b590b29f28af4809..370b9794058424dfa66822440c2572cbe5f286e3 100644
--- a/index.cn.html
+++ b/index.cn.html
@@ -45,7 +45,7 @@
                 <li><a href="http://book.paddlepaddle.org/index.cn.html" target="_blank">快速开始</a></li>
                 <li><a href="http://www.paddlepaddle.org/doc_cn/howto/index_cn.html" target="_blank">文档中心</a></li>
                 <li class="version-switcher">
-                    <a>版本<i class="fa" aria-hidden="true"></i></a>
+                    <a>版本<i class="fa" aria-hidden="true"></i>&nbsp;&nbsp;&nbsp;&nbsp;</a>
                     <ul>
                         <li><a href="http://www.paddlepaddle.org/release/0.10.0/doc_cn/" target="_blank">0.10.0</a></li>
                         <li><a href="http://www.paddlepaddle.org/release_doc/0.9.0/doc_cn/" target="_blank">0.9.0</a></li>
@@ -88,7 +88,7 @@
         <div>
             <div class="service-desc">
                 <h3>机器视觉</h3>
-                <p>卷积神经网络可以识别图像中的主要对象,并输出分类结果</p>
+                <p>卷积神经网络可以识别图像中的主要对象，并输出分类结果</p>
                 <div>
                     <a role="button" class="view-more" href="http://book.paddlepaddle.org/03.image_classification/index.cn.html" target="_blank">查看更多 ></a>
                 </div>
@@ -116,7 +116,7 @@
         <div>
             <div class="service-desc">
                 <h3>推荐系统</h3>
-                <p>分析用户特征、电影特征、点评分数,预测新用户对不同电影的点评分数</p>
+                <p>分析用户特征、电影特征、点评分数，预测新用户对不同电影的打分</p>
                 <div>
                     <a role="button" class="view-more" href="http://book.paddlepaddle.org/05.recommender_system/index.cn.html" target="_blank">查看更多 ></a>
                 </div>
@@ -155,7 +155,7 @@
                 <img src="./images/feature-4.png">
             </div>
             <h3>扩展性</h3>
-            <p>全面支持多核、多GPU、多机环境。轻松应对大规模数据训练需求</p>
+            <p>全面支持多核、多GPU、多机环境。轻松应对大规模训练需求</p>
         </div>
     </div>
 </section>
diff --git a/index.html b/index.html
index c742d16318a995468632a32ad228b407293f01e2..1f749df0782bb9b9b25d1e355b5c038bab4880db 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-cn">
 <head>
     <meta charset="UTF-8">
     <title>PaddlePaddle</title>
@@ -43,7 +43,7 @@
             <ul class="site-links">
                 <li><a class="active">Home</a></li>
                 <li><a href="http://book.paddlepaddle.org/index.html" target="_blank">Quick Start</a></li>
-                <li><a href="http://www.paddlepaddle.org/doc/howto/index_en.html" target="_blank">Documents</a></li>
+                <li><a href="http://www.paddlepaddle.org/doc/howto/index_en.html" target="_blank">Documentation</a></li>
                 <li class="version-switcher">
                     <a>Version<i class="fa" aria-hidden="true"></i></a>
                     <ul>
@@ -79,7 +79,7 @@
 <section class="services">
     <div class="row">
         <h2><span>Diverse Application Scenarios</span></h2>
-        <p class="sub-title">Promoting 100+ new business products on the line</p>
+        <p class="sub-title">Powers hundreds of baidu and partner products</p>
     </div>
     <div class="row">
         <div>
@@ -88,7 +88,7 @@
         <div>
             <div class="service-desc">
                 <h3>Computer Vision</h3>
-                <p>Using Convolutional Neural Networks (CNN) for Image Recognition and Object Detection.</p>
+                <p>Using a Convolutional Neural Network (CNN) for Image Recognition and Object Detection.</p>
                 <div>
                     <a role="button" class="view-more" href="http://book.paddlepaddle.org/03.image_classification/index.html" target="_blank">Read more ></a>
                 </div>
@@ -99,7 +99,7 @@
         <div>
             <div class="service-desc">
                 <h3>Natural Language Understanding</h3>
-                <p>Using Recurrent Neural Network (RNN) for Sentiment Analysis.</p>
+                <p>Using a Recurrent Neural Network (RNN) for Sentiment Analysis.</p>
                 <div>
                     <a role="button" class="view-more" href="http://book.paddlepaddle.org/06.understand_sentiment/index.html" target="_blank">Read more ></a>
                 </div>
