diff --git a/app/views/common/index.html.erb b/app/views/common/index.html.erb
index 5762eefe..df334ea8 100644
--- a/app/views/common/index.html.erb
+++ b/app/views/common/index.html.erb
@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name="theme-color" content="#000000"><meta name="renderer" content="webkit"/><meta name="force-rendering" content="webkit"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><link rel="manifest" href="/manifest.json"><link rel="shortcut icon" href="/favicon.ico"><title>Educoder</title><script type="text/javascript">window.__isR=!0</script><link rel="stylesheet" href="/react/build/css/css_min_all.css"><link rel="stylesheet" href="/assets/iconfont/iconfont.css"><link href="/react/build/./static/css/main.ce4a97cd.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="md_div" style="display:none"></div><div id="root" class="page -layout-v -fit"></div><div id="picture_display" style="display:none"></div><script type="text/javascript" src="/react/build/js/js_min_all.js"></script><script type="text/javascript" src="/assets/kindeditor/kindeditor.js"></script><script type="text/javascript" src="/react/build/js/create_kindeditor.js"></script><script type="text/javascript" src="/javascripts/educoder/edu_application.js"></script><script type="text/javascript" src="/react/build/./static/js/main.8545f40f.js"></script></body></html>
\ No newline at end of file
+<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name="theme-color" content="#000000"><meta name="renderer" content="webkit"/><meta name="force-rendering" content="webkit"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><link rel="manifest" href="/manifest.json"><link rel="shortcut icon" href="/favicon.ico"><title>Educoder</title><script type="text/javascript">window.__isR=!0</script><link rel="stylesheet" href="/react/build/css/css_min_all.css"><link rel="stylesheet" href="/assets/iconfont/iconfont.css"><link href="/react/build/./static/css/main.0568ccaf.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="md_div" style="display:none"></div><div id="root" class="page -layout-v -fit"></div><div id="picture_display" style="display:none"></div><script type="text/javascript" src="/react/build/js/js_min_all.js"></script><script type="text/javascript" src="/assets/kindeditor/kindeditor.js"></script><script type="text/javascript" src="/react/build/js/create_kindeditor.js"></script><script type="text/javascript" src="/javascripts/educoder/edu_application.js"></script><script type="text/javascript" src="/react/build/./static/js/main.dfa4489a.js"></script></body></html>
\ No newline at end of file
diff --git a/public/react/src/modules/ec/ecStudentList/ecStudentList.js b/public/react/src/modules/ec/ecStudentList/ecStudentList.js
index 911ee1c2..4208b2bc 100644
--- a/public/react/src/modules/ec/ecStudentList/ecStudentList.js
+++ b/public/react/src/modules/ec/ecStudentList/ecStudentList.js
@@ -323,7 +323,7 @@ class ecStudentList extends Component {
                         schooldata={schooldata}
                         ecpath={this.state.ecComponentState}
                     />
-                   <div className="clearfix padding20-30 bor-bottom-greyE mb10 mt10 edu-back-white">
+                   <div className="clearfix padding20-30 bor-bottom-greyE mb10 edu-back-white">
                         <span className="fl font-18 courseSystem ">学生列表</span>
                         <a className="fr font-15 courseSystem" onClick={this.windowsgoblack}>返回</a>
                     </div>
diff --git a/public/react/src/modules/ec/ecTitle/ecTitle.css b/public/react/src/modules/ec/ecTitle/ecTitle.css
index c6e612bc..3f6796cd 100644
--- a/public/react/src/modules/ec/ecTitle/ecTitle.css
+++ b/public/react/src/modules/ec/ecTitle/ecTitle.css
@@ -22,6 +22,8 @@
 }
 #traningNav>li>.ecTitles {
     line-height: 16px !important;
+    height: 18px!important;
+    width: 18px!important;
 }
 
 #traningNav>li>.ecTitlefont:hover{
