diff --git a/README.md b/README.md
index b4022c6..4676e0e 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,16 @@ chrome 小插件，优化在微信公众账号中发文章，因复制粘贴带
 ![界面预览](https://raw.githubusercontent.com/jaywcjlove/wxmp/master/wxmq.png)
 
 
+## 已经实现功能
+
+- [x] 过滤 `font-family`
+- [x] 代码高亮区域有背景颜色
+- [x] 代码高亮区域有横向滚动条强制不换行
+- [x] 增加iOS滚动滚动弹性
+- [] 添加设置标题功能
+- [] 添加字段高亮功能
+
+
 # 插件安装 
 
 1. 下载文件压缩包解压
diff --git a/js/bg.js b/js/bg.js
index 72fecd3..53fce5f 100644
--- a/js/bg.js
+++ b/js/bg.js
@@ -9,7 +9,7 @@ chrome.extension.onRequest.addListener(
                     for (var i = 0; i < elms.length; i++) {
                         var styl = elms[i].getAttribute('style');
                         if(elms[i].tagName === 'PRE'){
-                            elms[i].setAttribute('style','box-sizing: border-box; overflow: auto;font-size: 0.93em; padding: 1em; margin-top: 1.5em; margin-bottom: 1.5em; line-height: 1.3; word-break: break-all; word-wrap: break-word; color: rgb(51, 51, 51); border: none; border-radius: 3px; max-height: 35em; position: relative;background-color:#EDEDED;word-wrap: initial!important;') 
+                            elms[i].setAttribute('style','box-sizing: border-box; overflow: auto;font-size: 0.93em; padding: 1em; margin-top: 1.5em; margin-bottom: 1.5em; line-height: 1.3; word-break: break-all; word-wrap: break-word; color: rgb(51, 51, 51); border: none; border-radius: 3px; max-height: 35em; position: relative;background-color:#EDEDED;word-wrap: initial!important;-webkit-overflow-scrolling: touch;') 
                         }else if(elms[i].tagName === 'CODE'){
                             elms[i].setAttribute('style','box-sizing: border-box;font-size: 1em; color: inherit; border-radius: 0px; white-space: inherit; overflow-wrap: normal; background: none;word-wrap:normal!important;') 
                         }else{