diff --git a/README.md b/README.md
index f69b0c4..5fc1fd2 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@
 # 近期打算
 - 左侧三级菜单功能
 - 下拉刷新功能
+- tab选项卡优化
+- 手机端响应式优化
 
 # 效果预览
 ![1](https://raw.githubusercontent.com/bobi1234/ok-admin/master/images/readme/1.png)
diff --git a/css/okadmin.css b/css/okadmin.css
index 30f2354..6b967d5 100644
--- a/css/okadmin.css
+++ b/css/okadmin.css
@@ -57,6 +57,7 @@
     bottom: 0;
     width: 100%;
     padding: 0;
+    z-index: -999;
     overflow: hidden
 }
 
diff --git a/js/okadmin.js b/js/okadmin.js
index 97d6a94..88c04ec 100644
--- a/js/okadmin.js
+++ b/js/okadmin.js
@@ -13,13 +13,13 @@ layui.use(['element', 'layer'], function () {
      */
     $(".menu-switch").click(function () {
         if ($(".layui-layout-admin .layui-side").css("left") == '0px') {
-            $(".layui-layout-admin .layui-side").animate(left, -200);
-            $(".layui-layout-admin .content-body").animate(left, 0);
-            $(".layui-layout-admin .layui-footer").animate(left, 0);
+            $(".layui-layout-admin .layui-side").animate({left: "-200px"});
+            $(".layui-layout-admin .content-body").animate({left: "0px"});
+            $(".layui-layout-admin .layui-footer").animate({left: "0px"});
         } else {
-            $(".layui-layout-admin .layui-side").animate(left, 0);
-            $(".layui-layout-admin .content-body").animate(left, 200);
-            $(".layui-layout-admin .layui-footer").animate(left, 200);
+            $(".layui-layout-admin .layui-side").animate({left: "0px"});
+            $(".layui-layout-admin .content-body").animate({left: "200px"});
+            $(".layui-layout-admin .layui-footer").animate({left: "200px"});
         }
     });