diff --git a/app/views/users/_l_course.html.erb b/app/views/users/_l_course.html.erb
index 77ef8a36..1a16703f 100644
--- a/app/views/users/_l_course.html.erb
+++ b/app/views/users/_l_course.html.erb
@@ -98,7 +98,7 @@
   </div>
 <% else %>
 
-      <div class="pr clearfix">
+      <div class="pr padding20-30 clearfix secondNav educontent">
         <% if @user == User.current && ['a_course', 'a_shixun', 'a_project', 'a_path'].include?(@type) %>
 
           <!--课堂新建入口-->
diff --git a/app/views/users/_l_project.html.erb b/app/views/users/_l_project.html.erb
index ab2df884..b6479e86 100644
--- a/app/views/users/_l_project.html.erb
+++ b/app/views/users/_l_project.html.erb
@@ -98,7 +98,7 @@
   </div>
 <% else %>
 
-  <div class="pr clearfix">
+  <div class="pr padding20-30 clearfix secondNav educontent">
     <% if @user == User.current && ['a_course', 'a_shixun', 'a_project', 'a_path'].include?(@type) %>
       <!--实训新建入口-->
       <div class="square-Item squarebox">
diff --git a/app/views/users/_l_shixun.html.erb b/app/views/users/_l_shixun.html.erb
index df34c4b1..2b65ab07 100644
--- a/app/views/users/_l_shixun.html.erb
+++ b/app/views/users/_l_shixun.html.erb
@@ -102,7 +102,7 @@
   </div>
 <% else %>
 
-  <div class="pr clearfix">
+  <div class="pr padding20-30 clearfix secondNav educontent">
     <% if @user == User.current && ['a_course', 'a_shixun', 'a_project', 'a_path'].include?(@type) %>
       <!--实训新建入口-->
       <div class="square-Item squarebox">
diff --git a/app/views/users/_p_path.html.erb b/app/views/users/_p_path.html.erb
index d5a4e74c..33a1f719 100644
--- a/app/views/users/_p_path.html.erb
+++ b/app/views/users/_p_path.html.erb
@@ -87,7 +87,7 @@
     </div>
   </div>
 <% else %>
-  <div class="pr clearfix">
+  <div class="pr padding20-30 clearfix secondNav educontent">
     <% if @user == User.current && ['a_course', 'a_shixun', 'a_project', 'a_path'].include?(@type) %>
       <!--实训新建入口-->
       <div class="square-Item squarebox">
diff --git a/public/stylesheets/educoder/edu-all.css b/public/stylesheets/educoder/edu-all.css
index 644a218c..25353e92 100644
--- a/public/stylesheets/educoder/edu-all.css
+++ b/public/stylesheets/educoder/edu-all.css
@@ -3221,6 +3221,6 @@ line-height: 20px;display: inline-block;color: rgba(65, 140, 205, 1) !important;
 
 .squarebox{
     position: absolute;
-    top: -10%;
-    left: 20%;
+    top: 0%;
+    left: 2%;
 }
\ No newline at end of file