diff --git a/frontend/views/common/index.php b/frontend/views/common/index.php
index 19f1948..39578d3 100644
--- a/frontend/views/common/index.php
+++ b/frontend/views/common/index.php
@@ -110,7 +110,6 @@
      <div class="model-bg unchoose">
         <div class="content">
             <div>系统管理功能</div>用户设置，权限管理，权限分配，部门管理。数据备份，还原，压缩。<br/>客户字段自定义<br/>菜单字段自定义</div>
-        <div class="Previous">上一步</div>
         <div class="nextPage">下一步</div>
      </div>
      <div class="model-bg unchoose">
@@ -151,7 +150,6 @@
      </div>
       <div class="model-bg unchoose">
             <div class="content"><div>电话中心</div>通话记录统计，通话时长统计，电话号码分配</div>
-            <div class="Previous">上一步</div>
             <div class="nextPage perfection">完成</div>
       </div>
 </div>
diff --git a/frontend/web/assets/css/popUps.css b/frontend/web/assets/css/popUps.css
index da1f523..2c4e891 100644
--- a/frontend/web/assets/css/popUps.css
+++ b/frontend/web/assets/css/popUps.css
@@ -30,8 +30,8 @@
     font-size:16px;
     color:coral;
     padding: 10px 20px;
-    border-radius: 6px;
-    top:30%;
+    border-radius: 40px;
+    top:22%;
     left:53%;
     z-index: 2002;
     text-align: center;
@@ -49,7 +49,7 @@
     font-size:16px;
     color:#1ecd97;
     padding: 10px 20px;
-    border-radius: 6px;
+    border-radius: 40px;
     margin-top: 20px;
     border: 2px solid #1ecd97;
     transition: background-color .3s
@@ -66,7 +66,7 @@
     padding: 10px 20px;
     border-radius: 40px;
     text-align: center;
-    margin-top:-42px;
+    margin-top:-46px;
     margin-left:150px;
     border: 2px solid #1ecd97;
     transition: background-color .3s
diff --git a/frontend/web/assets/js/popUps.js b/frontend/web/assets/js/popUps.js
index aba140f..ad594ea 100644
--- a/frontend/web/assets/js/popUps.js
+++ b/frontend/web/assets/js/popUps.js
@@ -11,6 +11,10 @@ $(function(){
             _that.addClass("unchoose");
             $(".model-bg").eq(i+1).removeClass("unchoose");
         });
+        _that.find(".Previous").click(function () {
+            _that.addClass("unchoose");
+            $(".model-bg").eq(i-1).removeClass("unchoose");
+        });
     });
 
     $(".perfection").click(function () {