diff --git a/app-dm/src/nav/teacherIndex.jsx b/app-dm/src/nav/teacherIndex.jsx
index 0dc00fb..0b2c8e5 100644
--- a/app-dm/src/nav/teacherIndex.jsx
+++ b/app-dm/src/nav/teacherIndex.jsx
@@ -31,7 +31,7 @@ function HeaderNavTeacher() {
 
     return (
         // 导航
-        <div className="nav">
+        <div className="nav"> 
             <div className='title-nav'>
                 <img src={Logo} alt="" width='45px' height='40px'/>
                 <p>达梦实训平台</p>